If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

Find three numbers such that When we multiply three numbers, we will get the prime numbers. The difference between the second and the first number is equal to the third and second.

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?

I look at you, you look at me I raise my right, you raise your left. What am I?

Every words stands for unique digit that makes the arithmetic equation true

SEVEN + SEVEN + SIX = TWENTY.

What are the digits ?

A professor thinks of two consecutive numbers between 1 and 10.
'A' knows the 1st number and 'B' knows the second number

A: I do not know your number.
B: Nor do I know your number.
A: Now I know.

What are the four solutions for this?

I never was there, I am always to be.
You have never ever seen me, not ever you will.
Yet I am the confidence of everyone.

Who Am I?

Next Number in the Series,

5, 16, 49, 104, ?

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

Make the seating arrangement of 10 children in such a way that there are 5 rows with 4 children in each row.