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

13 decks of cards have been mixed. What is the minimum number of cards that must be taken out from the above-mixed cards to guarantee at least one 'four of a kind?

A bank customer had $100 in his account. He then made 6 withdrawals. He kept a record of these withdrawals, and the balance remaining in the account, as follows:

Withdrawals Balance left
$50 $50
$25 $25
$10 $15
$8 $7
$5 $2
$2 $0
----- -----
$100 $99

Why are the Totals not tallying?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

There are three houses in a straight row. One is red, one is blue, and one is white. The red house is left of the middle. The blue house is right of the middle. Where's the white house?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

You have 1023 apples and 10 bags. You have to distribute these apples in these 10 bags in any way you choose. But when I ask for a certain number of apples you have to give them in terms of bags without transferring the apples from other bags. How do you distribute the apples?

What does the below mathematical rebus mean?

Can you find out the remainder when 3^300 is divided by 5?

"That Restaurant always remains crowded. This is the reason why nobody goes there".

Can you find a flaw in this statement?