You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

Can you count the number of quadrilaterals in the picture below?

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

An octopus has 8 legs. A hippogriff has 6 legs and 2 pairs of wings. A sphinx has 6 legs and one pair of wings. Now we have all 3 kinds and a total of 18 insects in a cage. We have a total of 118 legs and 20 pairs of wings. How many insects do we have of each kind?

I am five letter word that is under you.
If you remove my 1st letter, then I am over you.
If you remove my 1st and 2nd letters then I am all around you.

Who am I?

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 you decipher the two rows to find the hidden word?

Which is the smallest number that you can write using all the vowels exactly once?

What kind of band never plays music?

I am sure no one can have two things for dinner. what are they?