A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.
Where's the father?

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

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

I am a word of 12 alphabets.

* Alphabets 12, 4, 7, 2, 5 : Eastern beast of burden
* Alphabets 1, 8, 10, 9 are street made famous by Sinclair Lewis.
* Alphabets 11, 3, 6 are past.

On whole it means a person suffering from delusions of greatness.

What Is it ?

One day, John and his friends were playing around. Jacob hit something with a Pin and it popped. John's dad came into the room that very moment, but he wasn't mad. In fact, he was smiling. What did Jacob hit?

When can we add 2 to 11 and get 1 as the correct answer?

What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?