Good Riddles

Question: Different lights make me strange,
for each one my size will change.

What am I?

Question: Suppose you had to pick 1 of 3 doors to go through. One has ninja assassins, one has a lion that hasn't eaten in 3 months, and one has a flaming inferno. Which door should you choose in order to live?

Question: There are 11 bananas and you take 4, how many do you have?

Question: There were 4 men fishing. The boat tipped, and every man fell into the water. Not a single man got wet. How is this possible?

Question: You have a cube made of 10 x 10 x 10 smaller cubes, for a total of 1000 smaller cubes. If you take off 1 layer of cubes, how many remain?