1) three tractor operators have brother Sergey, and at Sergey brothers are not present. Whether can such be?
Yes, if tractor operators - women, or speech about different Sergeys.

2) In a room burned 50 candles, 20 of them have blown. How many remains?
Remains 20: zadutye candles will not burn down completely.

3) If in 12 one o'clock in the morning it is raining, whether that it is possible to expect, what in 72 hours there will be a solar weather?
No, - in 72 hours there will be again a midnight.

4) On edge(territory) of a table have put tin to the bank, densely closed by a cover so, that 2/3 banks hanged down from a table. After a while bank has fallen. What was in bank?
Piece of an ice.

5) whether It is possible to create one more element from two chemical elements?
Yes, galvanic.

6) As is known, all primordially Russian female names terminate either on "and", or on "I": Anna, Maria, Olga, etc. However is the unique female name which does not terminate neither on "and", nor on "I". Name it(him).
Love.

7) Name five days, not naming numbers (napr., 1, 2, 3..) and names of days (napr., Monday, Tuesday, environment(Wednesday)...).
The day before yesterday, yesterday, today, tomorrow, the day after tomorrow.

8) When to a black cat is better to make the way in the house?
Many at once speak, that at night. All is much easier: when the door is opened(open).

9) On a table the ruler, a pencil, a compasses and an elastic band lay. On a leaf(sheet) of a paper it is necessary to draw a circle. With what to begin?
It is necessary to get a leaf(sheet) of a paper.

10) One train goes from Moscow in s.-»ÑÔÑÓíÒÓú with delay of 10 minutes, and another - from s.-»ÑÔÑÓíÒÓúá to Moscow with delay of 20 minutes. What of these trains will be closer to Moscow when they will meet?
At the moment of a meeting they will be on identical distance from Moscow.

11) From a jack three swallows have taken off. What probability of what in 15 seconds they will be in one plane?
100 % since three points always form one plane.

12) On a table lay two coins, in the sum they give 3 roubles. One of them - not 1 rouble. What it is coins?
2 roubles and 1 rouble. One that not 1 rouble, and here another - 1 rouble.

13) With what speed should run the dog to not hear a ring of the frying pan adhered to its(her) tail?
This task in the company at once reveals the physicist: the physicist at once answers, that it(she) needs to run with supersonic speed. Certainly, it is enough to dog to stand on a place.

14) One turn(turnover) around of the Earth the satellite does(makes) for 1 ch 40 minutes, and another - for 100 minutes. How it can be?
1 ch 40 mines = 100 mines

15) the Roof of one house is not symmetric: one slope it(her) makes with a horizontal a corner of 60 degrees, another - a corner of 70 degrees. We shall assume, that the cock postpones an egg for a crest of a roof. In what party(side) the egg - aside more flat or abrupt slope will fall?
Cocks do not put an egg.

16) In the 12-storeyed house there is a lift. On a ground floor lives only 2 persons, from a floor to a floor the quantity(amount) of tenants increases twice. What button in the lift of this house is pressed more often than others?
Irrespective of distribution of tenants on floors, the button "1".

17) the Boy has fallen with 4 stupenek and has broken a leg(foot). How many legs(foots) the boy if will fall with 40 stupenek will break?
Only one since the second at it(him) is already broken, or it is no more of any if will carry;-)

18) Went Kondrat to Leningrad,
And towards - twelve children(guys),
At everyone on three bast baskets,
In each bast basket - a cat,
At each cat - twelve kittens,
At each kitten in a teeth on four little mice.
Also has reflected old Kondrat:
" How many little mice and kittens
Children(Guys) bear(carry) to Leningrad? "
Silly, silly Kondrat!
It(He) one also walked to Leningrad.
And children(guys) with bast baskets,
With myshkami and cats
Went towards to it(him) - to Kostroma.

19) whether Probably such: two heads, two hands and six legs(foots), and in walking only four?
Yes, it is the horseman on a horse.

20) What wheel does not turn at the right turn?
Spare.

21) One more riddle " with a beard ": there were two fathers and two sons, have found three oranges. Began to divide - to all on one has got. How it could be?
It was the grandfather, the father and the son.

22) On a birch 90 apples grew. The strong wind has blown, and 10 apples have fallen. How many remains?
On a birch apples do not grow.

23) What words exhausted the Winnie-the-Pooh?
Long and difficult to pronounce.

24) Under what tree the hare, when it is raining sits?
Under wet.

25) As in a wood the hare can far run?
Up to the middle. Further it(he) already runs out from a wood.

26) What word always sounds incorrectly?
The word is incorrect".

27) From what utensils it is impossible to eat anything?
From empty.

28) Where there is a chicken, passing road?
On other party(side) of road.

29) That it is possible to prepare, but it is impossible to eat?
Yes it is a lot of that: a homework, cement.

30) As it is possible to place two litres of milk in a liter bottle?
To pour in a bottle litre when it(him) will drink, to pour the second litre; or to fill dry milk...

31) If five cats catch five mice for five minutes, what is the time it is necessary for one cat to catch one mousy?
Five.

32) How many months in a year have 28 days?
All 12, since if in a month of 30 days and 28 days among them are.

33) That throw, when require it(this), and lift, when in it(this) there is no need?
Anchor (sea, instead of resource;)

34) the Dog has been adhered to a ten-meter cord, and has passed(has taken place) three hundred meters. How it was possible to it(her)?
It(She) went inside of a circle with radius 10м, and it is not obligatory on a circle.

35) That can travel on light, remaining in the same corner?
Finger on a card(map), the globe; mark on an envelope; the Internet serfer;-)

36) whether It is possible zazhech a match under water?
If you in a submarine, yes.

37) As can to fly by the thrown egg three meters and to not be broken?
The main thing to throw it(him) so that it flied more than 3 meters then it will be broken not when will fly by 3м and when will fall.

38) That becomes with green rock if it(he) will fall to Red sea?
Anything unless will a little crumble from falling, or will sink.

39) the Man conducted the big lorry. Fires by the machine(car) were not zazhzheny. The moon too were not. The woman began to pass road in front of machine(car). How it was possible to the driver to make out it(her)?
So in the afternoon business - that was.

40) Two persons played checkers(blocks). Everyone has played on five parties(sets) and vygral on five times. It is possible(probable)?
Ugu also has lost too 5. In a drawn game played. Also it is possible(probable), that they played not with each other.

41) That can be more elephant and simultaneously weightless?
Vacuum, but on volume it(he) should borrow(occupy) a lot of place.

42) That people on the Earth do(make) all simultaneously?
Live.

43) That becomes more if it(him) to put head over heels?
Level of sand in a sand-glass.

44) How to jump off from a ten-meter ladder and to not hurt?
To jump off with nizshchej a step.

45) That has no length, depth, width, height, and it is possible to measure?
I booze in total speed, time, work, a pressure(voltage), IQ and td

46) What hand it is better to stir tea?
In which spoon and if the spoon is in both which it is more convenient.

47) When the network can extend water?
When water will turn to an ice.

49) Hа what question it is impossible to answer "Yes"?
You have died? You, what the deaf-mute?