Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?

How many sides does a circle have?

I have two sand hourglasses:
1. A 7 minute one and
2. An 11-minute one.

Using just these 2 sand hourglasses, how can I measure time as 15 minutes?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

You have 1023 apples and 10 bags. You have to distribute these apples in these 10 bags in any way you choose. But when I ask for a certain number of apples you have to give them in terms of bags without transferring the apples from other bags. How do you distribute the apples?

I am beautiful, up in the sky. I am magical, yet I cannot fly. To people I bring luck, and to some people, riches. The boy at my end does whatever he wishes. What am I?

Can you name an animal whose killing cannot be performed without spilling your own blood?

What word is identified by the below rebus?

Your Your Your Your Your
Your Your Your Your Your

Why is the longest human nose just 11 inches?