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?

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?

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

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

1 rabbit saw 9 elephants while going to the river. Every elephant saw 3 monkeys going toward the river. Each monkey had 1 parrot in each hand. How many animals are going towards the river?

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?

Why 1729 is a magic number? Answer Logically.

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

Explain?

I have a big mouth and I am also quite loud! I am NOT a gossip but I do get involved with everyone's dirty business.

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?