What is the riddle which can be asked all day with a different correct answer each time.

If it took eight men ten hours to build a wall, how long would it take four men to build it?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

A rubber ball keeps on bouncing back to 2/3 of the height from which it is dropped. Can you calculate the fraction of its original height that the ball will bounce after it is dropped and it has bounced four times without any hindrance ?

Can you make a six-letter word using the letters N, A and B ?

Find the number of squares in the below-given picture.

Can you find the key in the picture below?

What is at the end of a rainbow?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?