The doctor prescribed you to take one pill from the bottle every half an hour. The bottle is now left with only three pills.

How long do you think you have before you run out of pills?

A father's child, a mother's child, yet no one's son.

Who am I?

What kind of tree can you carry in your hand?

Three men in a cafe order a meal the total cost of which is $15. They each contribute $5. The waiter takes the money to the chef who recognises the three as friends and asks the waiter to return $5 to the men.

The waiter is not only poor at mathematics but dishonest and instead of going to the trouble of splitting the $5 between the three he simply gives them $1 each and pockets the remaining $2 for himself.

Now, each of the men effectively paid $4, the total paid is therefore $12. Add the $2 in the waiters pocket and this comes to $14. Where has the other $1 gone from the original $15?

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

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

Count the squares in the matchstick puzzle below?

The more it dries, the wetter it becomes. Can you tell what it is?