In a contest, four fruits (an apple, a banana, an orange, and a pear) have been placed in four closed boxes (one fruit per box). People may guess which fruit is in which box. 123 people participate in the contest. When the boxes are opened, it turns out that 43 people have guessed none of the fruits correctly, 39 people have guessed one fruit correctly, and 31 people have guessed two fruits correctly.
How many people have guessed three fruits correctly, and how many people have guessed four fruits correctly

You are presented with three boxes. One of them has a red ball inside and the other two have a black ball inside each of them. You are asked to pick up the one with red ball and you pick one. Now, one of the other boxes is opened and it is found to have a black ball.

You are presented with a chance to change your box with the one that is left closed. Will you change your box? Why or why not?

Which of the following words don't belong in the group and why?
CORSET, COSTER, SECTOR, ESCORT, COURTS

A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?

Find the missing number: 1, 2, 3, 10, 10, ?, 9,802

What does a man do only once in his lifetime, but women do once a year after they are 29?

Find out which of the given views in the picture is accurately the top view of the given pyramid.

In a football game, Christina defeated Teresa by 2 - 0 but no man from either side scored. How can this be possible?

Eight of us go fourth, not back, to protect our king from an attack. What are we?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?