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

What is the difference between a jeweller and a jailer?

There is a certain crime, that if it is attempted, is punishable, but if it is committed, is not punishable. What is the crime?

During which month do people sleep the least?

Consider all the numbers between 1 and 1 million. Among all these numbers, there is something very special about the number 8 and the number 2202. What is it?

There is a barrel with no lid and some wine in it. 'This barrel of wine is more than half full,' said Curly. 'No it's not,' says Mo. 'It's less than half full.' Without any measuring implements and without removing any wine from the barrel, how can they easily determine who is correct?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

I have some blue and red sock in my drawer. I have a total of 4 socks. I pick 2 socks and the chance that I get a pair of red socks is 1/2.

What is the chance of picking a pair of blue socks?

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

What has many teeth, but cannot bite?