How many words can a pen with half refill write?

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?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

How many triangles are there in the picture below?

What word does this rebus represent?

meta meta
meta meta

Why is 6 afraid of 7?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

A container contains 100 eggs. They can be either fresh or rotten. What is sure is the fact that there is at least one fresh egg in that container.

If you are asked to pick two eggs randomly from the container, at least one of them will be rotten.

Can you calculate how many eggs in that container are fresh?

John went to a parrot shop in Mexico, and the parrot owner told him that his parrot is so unique that he repeats everything he hears. John got excited and immediately bought the parrot. John went home and spoke many words, but the parrot does not repeat anything.
He went again to the parrot shop and complaint to the shopkeeper, but the shopkeeper never lied. Explain?