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?

This is a most unusual paragraph. How quickly can you find out what is so unusual about it? It looks so ordinary, you'd think nothing was wrong with it. Actually, nothing IS wrong with it. But it is not as ordinary as you might think. If you think about it for a bit, you will find out why it is truly so unusual. So what is it? What is so unordinary about this paragraph?

What word begins and ends with an E, but has only one letter?

How many sides does a circle have?

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?

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.

Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday?

What month of the year has 28 days?

John was piloting a plane behind a car but was never able to overtake it. Why?

I know there are two methods by using three time the same number with a plus(+) operator , you can make sum as 60.

One of them is 20+20+20.

whats the other way ?