Imagine a box with two cogwheels, one big with 24 teeth and one small with 8 teeth. The big one is firmly attached to the center of the box which means it does not turn or move while the small one rotates around the big one.

How many times do you think that the smaller wheel will turn compared to the box when it turns once around the big one?

I taste better than I can smell. Who am I?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

Can you solve the below tricky visual equation?

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?

Can you find the ages of a son, father and grandfather based on the following facts?
The sum of the ages of grandfather, father and son is 140 years.
The age of the son in months is the same as the grandfather in years.
The age of the son in days is the same as the father in weeks.

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

Which country gets ill every time?