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 horse was tied to a rope 5 meters long and the horses food was 15 meters away from the horse. How did the horse reach the food?

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

Solve the following series:
AZ, GT, MN, __, YB

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

Which is the correct shadow of the bird?

2 ladies and 2 girls need to cross a river in a boat big enough for 1 LADY or 2 girls. How do they do it?

I have branches, but no fruit, trunk or leaves. What am I?