The teacher told the student that if he told a lie then he will be expelled from school and if he told the truth then he still is expelled from school.

What can a student say to prevent his being expelled from school?

One absent-minded ancient philosopher forgot to wind up his only clock in the house. He had no radio, TV, telephone, internet, or any other means for telling time. So he travelled on foot to his friend's place a few miles down the straight desert road. He stayed at his friend's house for the night and when he came back home, he knew how to set his clock. How did he know?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

In a chess board, the queen piece can move horizontally, vertically and diagonally freely. The picture represents the same.Can you place 8 queens on the board in a manner that none of the queens can attack each other?

What is so fragile that saying its name breaks it?

What 5-letter word typed in all capital letters can be read the same upside down?

Find the mistake in the below maths equations

A = 2
A(A-1) = 2(A-1)
A2-A = 2A-2
A2-2A = A-2
A(A-2) = A-2
A = 1

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

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