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

How is this possible?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

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

Women do it once a year after they turn 19 but men get to do it only once in a lifetime. What is it?

Why is the Hole below a Lock?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

At Delhi Cricket Clubhouse, there were four kids(Kohli, Yuvraj, Pant, and Dhoni) ages 1,2,3 and 4 and have 1,2,3 and 4 cricket balls in different orders.

We know the following facts:

Kohli has more cricket balls than his age.
Dhoni is older than Yuvraj.
One child has the same number of cricket balls as his age.
Pant has fewer cricket balls than Dhoni.
A child aged 3 has two cricket-balls.

Pant is the youngest.

Can you determine the age of the children and the number of cricket balls they have?

John speaks the truth only once a day in a week. Below are a few hints for you:

First: Days are Sunday, Monday and so on.
Second: One day he says, "I lie on Monday and Tuesday".
Third: On the next day, he says, "Today is either Thursday, Saturday or Sunday".
Fourth: On the next day, he says, "I lie on Wednesday and Friday".

Can you identify the day on which he speaks the truth?

Can you replace the question mark with the correct number in the below table sequence?

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?