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

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

I know a nine-letter word having only one vowel.
Do you ?

How many times can you subtract the number two from the number fifty?

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?

Teacher ask the student

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

what did student replied ?

A fresh card pile is taken out of a box (the pile has 54 cards including 2 jokers). One joker is taken out and then the cards are shuffled for a good amount of times. After shuffling, two piles are made by dividing that one pile.



What is the possibility that one of the piles will have a card sequence from A to K in order?

I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?

The first box has two white balls. The second box has two black balls. The third box has a white and a black ball.

Boxes are labeled but all labels are wrong!

You are allowed to open one box, pick one ball at random, see its colour and put it back into the box, without seeing the colour of the other ball.

How many such operations are necessary to correctly label the boxes?

What occurs twice in a week, once in a year but never in a day?