Long Riddles and Answers

Question: I have roots that nobody sees,
I'm taller than any trees,
up and up I go,
but I never grow?

What am I?

Question: A man was able to avoid getting stuck alone on a deserted island by forgetting to put one thing on the island.What did he forget?

Question: A man walks into a bar and buys 3 pints in total costing 5 pounds the man leaves the bar wirhout spending a penny. Hows this?

Question: There are five fish in a fish tank. Two swim away, one swims towards the ocean, and two die. How many fish are left in the tank?

Question: When you close it, you see mysterious and funny looking images. But if you open it, the mysterious images are gone. What Am I?