It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

Three ants are going up a hill, one behind the other. The last ant then says to the other ants, 'There is an ant behind me!'' How come?

A monk has a very specific ritual for climbing up the steps to the temple. First, he climbs up to the middle step and meditates for 1 minute. Then he climbs up 8 steps and faces east until he hears a bird singing. Then he walks down 12 steps and picks up a pebble. He takes one step up and tosses the pebble over his left shoulder. Now, he walks up the remaining steps three at a time which only takes him 9 paces. How many steps are there?

During which month do people sleep the least?

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?

What demands an answer, but asks no questions

How many letters are in the alphabet?

What has many keys but can’t open a single lock?

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?