I make two people out of one. What am I?

How do you go from 98 to 720 using just one letter?

What makes this number unique: 8,549,176,320?

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?

What is the unique property of the following words ?
* Revive
* Banana
* Grammar
* Voodoo
* Assess
* Potato
* Dresser
* Uneven

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

When I asked a girl's name she told me her name is the date '07/09/2001'.

I thought for a few seconds and then I got her name. Do you?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

Sally lives in a place where six months of the year is mild summer and the temperature drops significantly the other six months. She owns a lake where there is a small island. She wants to build a house on the island and needs to get materials there. She doesn’t have a boat, plane, or anything to transport them to the island. How does Sally solve this problem?