What has to be broken before you can use it?

Find the next number in the series below.

6 18 270 72090 ?

What is the riddle which can be asked all day with a different correct answer each time.

What does this rebus riddle mean?

There are three boxes which are labeled as Rs100, Rs150, and Rs200. One box contains two notes of Rs. 50. The second box contains one note of Rs50 and one note of Rs100 The third box contains two Rs. 100 notes. All boxes are labeled incorrectly.

What is the minimum number of boxes you must check in order to label all boxes correctly?

What is the relationship between these matchstick pictures below?

If a wheel has 54 spokes, how many spaces are there between the spokes?

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

which number am I?

My sock drawer has 26 blue socks, 13 pink socks, 33 green socks, and 12 red socks, how many socks would I have to pull out in the dark to be sure I had a matching pair?

Two fathers and two sons went fishing one day. They were there the whole day and only caught 3 fish. One father said, that is enough for all of us, we will have one each. How can this be possible?