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 arrange the six given marbles in a manner that each one of them is touching all four marbles of different colours?

A thief is convicted in Mexico. He gets the death penalty. The judge allows him to say the last sentence to determine how the penalty will be carried out. If the thief lies, he will be hanged, if he speaks the truth he will be beheaded. The thief tells the last sentence and to everybody's surprise some minutes later he is set free because the judge cannot determine his penalty. What did the thief say?

Spot 5 differences in two Christmas tree below:

Imagine you are in a room with no windows or doors. How will you get out?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

A journalist was investigating a sacred cult in the jungles of Africa when he was caught by one of the person. He was confined in a cave till the leader arrived. The leader told him that he need to tell him a statement. If he thinks the statement is true, then the journalist head will be chopped off. If he thinks that the statement is false, his head will be smashed with a hammer.

What statement did the journalist make to survive?

Can you solve the below tricky visual equation?

What is the difference between a jeweller and a jailer?

Can anyone tell me a word in the English dictionary which has a silent 'z'?