Easy Riddles and Answers

Question: I am a cave full of bones,
and the house of a worm.

What am I?

Question: You have found a mutant algae that doubles in size every hour. It takes 18 hours for one algae plant to take up half of a certain lake.

How long would it take for two of these plants to take up half of the same lake?

Question: A man and his wife live I a nice cottage in a village near the lake. One day, they were rowing a boat when he wife fell in and the husband went in to get her out but all he could feel were plants, moss, and rocks. Two weeks after the funeral, the man was walking around the lake when he started talking to a new neighbor when the fisherman said some interesting facts. Fisherman: I haven't caught anything today. Maybe because of the fact this lake has no kelp what so ever. Mrs. Montoya was telling me about it yesterday. I always catch fish when there is kelp in a lake or pond. That is just rotten ain't it? The husband said goodbye to the neighbor and went inside and killed himself. Why is this?

Question: There are 4 light bulbs in a room and 4 switches corresponding to these four light bulbs (in a random order). You cannot see the light bulbs from where the switches are.

If you can only visit the room with the light bulbs once, how can you figure out which switch belongs to which light bulb?

Question: A man gave one son 10 cents and the other 15 cents.

What time was it?