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

Once upon a time, there was a castle on a square island. The entire island was surrounded by a 14m wide trench. The Romans had wanted to invade the castle and had brought a few wooden planks along with them to facilitate themselves in crossing the moat. The planks were however found to be only 13m long.

The Romans still managed to cross the trench. How did they do it?

You bought me for dinner but never eat me. What am I?

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?

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?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

In a town, there are four houses located at different distances from each other. Following are the distances:

The third house is 60 meters apart from the first house.
The fourth house is 40 meters apart from the second house.
The third house is 10 meters nearer to the fourth house than it is to the second house.

Can you find out the distance between the fourth and the first house?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

Find the Goldfish below the given Image.

What kind of band never plays music?