Good Riddles

Question: How can you add 8 8's to make 1000?

Question: Mr. Smith has 4 daughters. Each of his daughters has a brother.

How many children does Mr. Smith have?

Question: What has a foot but no leg?

Question: What can one not keep, two hold, and three destroy?

Question: I am the beginning of the end, the end of every place. I am the beginning of eternity, the end of time and space. What am I?