A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.
Where's the father?

When it's bad luck to meet a black cat?

what does this picture(rebus) riddle means ?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

Why is Saturday stronger than Monday?

James ordered a fishing rod, priced at $3.56. Unfortunately, James is an Eskimo who lives in a very remote part of Greenland and the import rules forbid any package longer than 4 feet to be imported. The fishing rod was 4 feet and 1 inch, just a little too long, so how can the fishing rod be mailed to James without breaking the rules? Ideally James would like the fishing rod to arrive in one piece!

There are two insects on a tile. Insect X is sitting on one side of the tile (point A) and Insect Y is sitting opposite on the other side of the tile (point B). Now both of them decide to change their position and thus X starts crawling to point B and Y starts crawling to point A. When they meet and pass each other in between, X takes 20 seconds to reach B and Y takes just 5 seconds to reach A.

Can you calculate the total time each of the insects took to change their positions?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

You need to move three matchsticks to form three squares. Can you do it?