What does this Rebus Picture mean?

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

which number am I?

You walk into a creepy house by yourself. There is no electricity, plumbing, or ventilation. Inside you notice 3 doors with numbers on them. Once you open the doors you will die a particular way. Door No.1 You’ll be eaten by a lion who is hungry. Door No.2 You’ll be stabbed to death. Door No.3 There is an electric chair waiting for you. Which door do you pick?

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

what does this picture(rebus) riddle means ?

The horse jumps over the king.
Strangely there is absolutely no scratch on him.

Can anyone explain, how is this possible?

Can you make four (4) nines (9) equal 100?

You board a train. The train will have to enter a tunnel soon. You are claustrophobic. Which place is the best for you to sit?

When we see 2 but call 10?