A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?

What has 13 hearts but no other organs?

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

There is a box full of marbles,
all but two are blue,
all but two are green,
and all but two are red.

How many marbles are in the box?

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?

When it is alive we sing, when it is dead we clap our hands. What is it?

What does below pictogram mean?

Find the hidden tiger in the given optical illusion ?

Can you place six X (crosses) in below board without making three in a row in any way ?

Why is a river so rich ?