If two's company, and three's a crowd, then whats four and five ?

I have no life, but I can die. What am I?

A patient was diagnosed with some ailment. He was given five different tablets to take at night at an interval of 15 minutes.

How long will it take the patient to consume all the five tablets?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

What demands an answer, but asks no questions

This is a most unusual paragraph. How quickly can you find out what is so unusual about it? It looks so ordinary, you'd think nothing was wrong with it. Actually, nothing IS wrong with it. But it is not as ordinary as you might think. If you think about it for a bit, you will find out why it is truly so unusual. So what is it? What is so unordinary about this paragraph?

A sundial has the fewest moving parts of any timepiece. Which has the most?

What is full of holes but still holds water?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

Alex is stranded on an island covered in forest.
One day, when the wind is blowing from the west, lightning strikes the west end of the island and sets fire to the forest. The fire is very violent, burning everything in its path, and without intervention the fire will burn the whole island, killing the man in the process.

There are cliffs around the island, so he cannot jump off.

How can the Alex survive the fire? (There are no buckets or any other means to put out the fire)