Two boys were admitted to a school. When the headmaster asks them about their parents, they tell him that they have same parents (father and mother). On further inquiry, it turns out that they both share the same date for their birthday.

"Are you twins," ask the headmaster.
"No," replies the boys.

Is it possible?

10+10 and 11+11 can give you the same answer.

Explain how?

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?

I am quite hot but become too cold if you remove the first two letters. What am I?

A few friends are enjoying their sea voyage in a boat full of apples. On the way, they felt hungry and thus decided to eat the apples. Together, they ate two dozen of apples. When they have eaten the apples, will there be any change in the water level?

I have an eye but still cannot see.

Who am I?

Christina, Allison and Lena are 3 daughters of John a well-known Mathematician, When I asked John the age of their daughters. He replied "The current age of her daughters is prime. Also, the difference between their ages is also prime."

How old are the daughters?

Find out the missing number in the picture attached:

You can see it everyday, But cannot touch it at will. What is it?

What always comes into a house through the keyhole?