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 find the ages of a son, father and grandfather based on the following facts?
The sum of the ages of grandfather, father and son is 140 years.
The age of the son in months is the same as the grandfather in years.
The age of the son in days is the same as the father in weeks.

Why 1729 is a magic number? Answer Logically.

Can you quickly find which two matchstick figures are identical?

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

Can you fill the blank with the correct number?

6 30 870 756030 _____

I am lying and I always lie. Tell me whether I am lying or telling the truth.

What can jump higher than a building?

I am a mother. However, I never give birth.

I am a father. However, I never nurse my children.

Wandering is not possible for me, but standing still happens occurs rarely.

Who am I?

What is the next number in the series?

15 29 56 108 208 ?