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?

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

I don't get anymore wetter, no matter how much rain falls on me.

One day, John and his friends were playing around. Jacob hit something with a Pin and it popped. John's dad came into the room that very moment, but he wasn't mad. In fact, he was smiling. What did Jacob hit?

You enter your friend's room. He is not in his room. Although you see that on the bed there are two dogs, five cats, two giraffes and three pigs. Also, a couple of chickens and ducks are flying in the room.

Calculate the number of legs standing on the floor.

A man started to town with a fox, a goose, and a sack of corn. He came to a stream which he had to cross in a tiny boat. He could only take one across at a time. He could not leave the fox alone with the goose or the goose alone with the corn. How did he get them all safely over the stream?

What have one eye but still cannot see?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

The dirtier I get, the whiter I look. Who am I?