What does this Rebus Picture mean?

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?

It begins where the time ends.
Its second is an expression of surprise.
Its third is a question.
Its fourth is urinate.
It ends with a drink.

Which country it is?

What can jump higher than a building?

If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?

Solve this riddle by finding the odd one out from the rest.

Pronounced as 1 letter, And written with 3, 2 letters there are, and 2 only in me. I’m double, I’m single, I’m black blue and grey, I’m read from both ends, and the same either way. What am I?

Why do Chinese men eat more rice than Japanese men do ?

A father's child, a mother's child, yet no one's son.

Who am I?

Two fathers and two sons went fishing one day. They were there the whole day and only caught 3 fish. One father said, that is enough for all of us, we will have one each. How can this be possible?