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

which number am I?

I’m tall when I’m young, and I’m short when I’m old. What am I?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

Solve below popular number sequence
314 159 265 358 979 323 846 ?

I am the fastest animal but cannot climb the tree. What am I?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

If,
9 * 8 * 7 = 65
8 * 7 * 6 = 50
7 * 6 * 5 = 37

Find
6 * 5 * 4 = ?

What does it mean?

Using eight eights and addition only, can you make 1000?

The captain of a ship was telling this interesting story: "We travelled the sea far and wide. At one time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly." How can that be possible?