If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

A rain drop fell from one leaf to another leaf and lost 1/4th of its volume. It then fell to another leaf and lost 1/5th of the volume. It again fell on another leaf and lost 1/5th of the volume.



This process kept repeating till it fell on the last leaf losing 1/75th of its volume.



Can you calculate the total percentage of loss from the initial volume when the drop has fallen to the last leaf accurate up to two decimal places?

What is the next number in this series?

4,12,84,3612....

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

John buys rice at Rs.60/kg from Britain and then sells them at Rs.5/kg in India. As a result of this, he becomes a millionaire. How come?

There are six people in a family namely M, N, O, P, Q and R.

R and O are brother and sister.

N is the brother of Q's husband.
P is the father of M and grandfather of R.

How many male members are in the family?

You are given with the following sum. Each of the letters can be decoded as a digit. If we tell you that D = 5, then can you solve it entirely?

DONALD
+GERALD
=ROBERT

What Time Should the last watch show in the below figure?

Replace the question mark with the correct number below.

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?