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

which number am I?

How many bricks does it take to complete a building that is 15 feet wide, 30 feet deep, and 12 feet tall made of brick?

Why Wine Glass Stem is so long?

What is the largest number you can write with just 3 digits?

I don't get anymore wetter, no matter how much rain falls on me.

There is a box full of marbles,
all but two are blue,
all but two are green,
and all but two are red.

How many marbles are in the box?

All of the flowers I have are orchids except two. All of the flowers I have are hibiscuses except two. All of the flowers I have are roses except two.

Can you tell me how many flowers I have?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

Two old friends, Jack and Bill, meet after a long time.

Three kids
Jack: Hey, how are you, man?
Bill: Not bad, got married and I have three kids now.
Jack: That's awesome. How old are they?
Bill: The product of their ages is 72 and the sum of their ages is the same as your birth date.
Jack: Cool..But I still don't know.
Bill: My eldest kid just started taking piano lessons.
Jack: Oh, now I get it.

How old are Bill's kids?

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?