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

Can you write down eight eights so that they add up to one thousand?

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?

What jumps when it walks and sits when it stands?

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

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

While going to your grandmother's house, you counted Twenty houses on the right side. While returning back to your home, you counted Twenty houses on the left side.

How many houses are there between your home and your grandmother's home?

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

The more of this there is, the less you see. What is it?