Medium clever riddles with simple answers

Whoever makes it, tells it not. Whoever takes it, knows it not. Whoever knows it, wants it not.

I am something to make you think, I am something to make you know. I am something to which the answer you might never know. What am I?

On the first day they cover one quarter of the total distance. The next day they cover one quarter of what is left. The following day they cover two fifths of the remainder and on the fourth day half of the remaining distance. The group now have 14 miles left, how many miles have they walked?

When you have me more, you can see only less. What Am I?

General Custer is surrounded by Indians and he's the only cowboy left. He finds an old lamp in front of him and rubs it. Out pops a genie. The genie grants Custer one wish, with a catch. He says, "Whatever you wish for, each Indian will get two of the same thing." Custer ponders a while and thinks:"If I get a bow and arrow they get two. If I get a rifle they get two!" He then rubs the bottle again and out pops the genie. "Well," the genie asks "have you made up your mind?" What did Custer ask for to help him get away?

I have just one, but with eight to spare, I am usually friendly, but I sometimes act like I don't care. What am I?

I look taller when I am young. But as I get old, I become shorter and shorter. What Am I?

I take what you receive and surrender it all by waving my flag. What am I?

I can run, but not walk. Thought is not far behind me. What am I?

I have lot of memories, but I own nothing. What am I?