In a stable, there are men and horses. In all, there are 22 heads and 72 feet. How many men and how many horses are in the stable

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

A sundial has the fewest moving parts of any timepiece. Which has the most?

Using Only Five 5's and any mathematical operator make sum as 37

Distances from you to certain cities are written below.

BERLIN 200 miles

PARIS 300 miles

ROME 400 milesAMSTERDAM 300 miles

CARDIFF ??? miles

How far should it be to Cardiff ?

Give it food and it will live; give it water and it will die.

Which city is three-fifths chick two third cat and 50% goat?

Which tank will fill first?

What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?