Two friends were betting. One said to the other, "The coin will be flipped twenty times and each time the coin lands on the head, I will give you $2 and each time it lands on the tale, you will give me $3." After flipping the coin twenty times not a single penny was exchanged among them.

How many times did the coin land on heads?

Why is the Hole below a Lock?

I am a three digit number.
My tens digit is five more than my ones digit.
My hundreds digit is eight less than my tens digit.
What number am I?

Outside a tattoo artist's shop, there was a signboard which read 'I make tattoos on only them who do not tattoo themselves'.

Reading it what do you think, does the tattoo artist tattoo himself?

Find the next number in the sequence

5 12 24 36 ?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

Solve the equation in the image by looking at the pattern closely.

What is the word or phrase?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

People make me, save me, change me, raise me. What am I?