How many sides does a circle have?

what does this below rebus represent identXQQQQQME

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

What does this rebus mean?

O
N
C
E
TIME

When 99 is considered higher than 100?

Christina, Allison and Lena are 3 daughters of John a well-known Mathematician, When I asked John the age of their daughters. He replied "The current age of her daughters is prime. Also, the difference between their ages is also prime."

How old are the daughters?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

Can you move 2 matchsticks to form four equal sized squares.

If you say my name, I will no longer exist. What am I?

At a bar, three friends, Mr Green, Mr Red and Mr Blue, were having a drink. One man was wearing a red suit; one a green suit; and the other a blue suit. 'Have you noticed,' said the man in the blue suit, 'that although our suits have colours corresponding to our names, not one of us is wearing a suit that matches our own names?' Mr Red looked at the other two and said, 'You're absolutely correct. What colour suit is each man wearing?