Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

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

which number am I?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

When you stop to look, you can always see me. But if you try to touch me, you can never feel me. Although you walk towards me, I remain the same distance from you. What am I?

Can you count the number of squares in the given picture?

I have a mouth but I don't eat.
I have a bank but have no money.
I have a bed but i dont sleep.
I wave but have no hands.

Who Am I ?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

There was a minor accident with a doctor's son but the doctor noticed no major injury. After the treatment, the father of that doctors son is sitting with the son of the doctor without the doctor being in the room.

How can this be possible?

What is the fastest way to double your money?