Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

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

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

You throw me out when you want to use me and you take me in when you don't want to use me.

Who Am I?

What breaks yet never falls, and what falls yet never breaks?

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

If you say my name, I will no longer exist. What am I?

What you cannot hold but it is yours?

I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?