If two's company, and three's a crowd, then whats four and five ?

There’s a girl who has a large family. She has an equal amount of brothers and sisters, but each brother only has half as many brothers and sisters. What’s the correct amount of brothers and sisters?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

What does this rebus means ?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

I am written with two letters.
I said with the one.
I usually am seen with the two.

Who am I?

A man is looking at a photograph of someone. His friend asks who it is. The man replies, “Brothers and sisters, I have none. But that man’s father is my father’s son.” Who was in the photograph?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

You are mixing a mixture of cement and Sand with five gallons of water. You have a garden hose giving you all the water you need. The problem is that you only have a four-gallon bucket and a seven-gallon bucket and neither has graduation marks. Find a method to measure five gallons.