What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

I am a three digit number.
My tens digit is five more than my ones digit.
My hundreds digit is eight less than my tens digit.
What number am I?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

A mother bought three dress for her triplets daughters(one for each) and put the dresses in the dark. One by one the girls come and pick a dress.
What is the probability that no girl will choose her own dress?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

What is the fastest way to double your money?

If we tell you that there is a relation between the numbers and letters in the given figure, can you analyze it and find the missing letter in the last box?

A lion and its tamer are standing inside a cage that measures 1 unit in radius. Both of them can effortlessly run at the speed of 1 unit maximum.

1) Suppose the lion is hungry, will he be able to eat up the tamer?
2) If yes, how long can the tamer survive?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?