What has a ring but no finger?

I don't get anymore wetter, no matter how much rain falls on me.

I can be made.
I can be cracked.
I can be told.
I can be played.

Who am I?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?

2 ladies and 2 girls need to cross a river in a boat big enough for 1 LADY or 2 girls. How do they do it?

The more it dries, the wetter it becomes. Can you tell what it is?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

An exterior architect is asked by a builder to plant seven trees in a manner that there are exactly six rows of trees in a straight line and each row has three trees in particular.

How will he do it?