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 ?

One night, Louis and Adam were sitting together. Adam was watching a movie while his wife Louis was reading a mystery book. Suddenly the power went out and Adam decided to go to bed, but strangely Louis kept on reading. There was no artificial light around, so Louis kept on reading. How come?

Outside a massage parlour, there is a board that reads
"I only massage those who do not massage themselves."

Reading the above statement, does the masseur massage himself?

Which city is three-fifths chick two third cat and 50% goat?

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

All of Jacob's shoes are red except two.
All of Jacob's shoes are green except two.
All of Jacob's shoes are yellow except two.

How many shoes does Jacob have?

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

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

Count the squares in the matchstick puzzle below?

What is the fastest way to double your money?