Riddle: One is to three as three is to five and five is to four and four is the magic number.  What is the pattern?
Answer: One has three letters in the word three has five letters in it five has four letters and four has four letters in it (if you try more numbers they will always come back to the number four: so four is the magic number)
Riddle: What common English verb becomes its own past tense by rearranging its letters?
Answer: Eat and Ate.
Riddle: Three lives have I. Gentle enough to soothe the skin, Light enough to caress the sky, Hard enough to crack rocks. What am I?
Answer: Water. Explanation: Water can be in the form of a liquid, solid (ice), and/or a gas (water vapor) which is represented by "three lives".  As a liquid, it is used to bathe, as a gas it creates clouds that float in the sky, and as a solid (ice), it can split rocks or create glaciers that scour the earth as they move downhill.
Brain Teasers
Riddle: I am the beginning of sorrow and the end of sickness. You cannot express happiness without me, yet I am in the midst of crosses. I am always in risk, yet never in danger. You may find me in the sun, but I am never out of darkness. What am I?
Answer: The letter S.
Riddle: Forward I am heavy, but backward I am not. What am I?
Answer: The word Ton.
Brain Teasers
Riddle: I can be long, or I can be short. I can be grown, and I can be bought. I can be painted, or left bare. I can be round, or square. What am I?
Answer: Your fingernails.
Riddle: If your uncle's sister is not your aunt, what relation is she to you?
Answer: Your mother.
Brain Teasers
Riddle: I'm the part of the bird that's not in the sky. I can swim in the ocean and yet remain dry. What am I?
Answer: I am the birds shadow.
Riddle: A man was just doing his job when his suit was torn. Why did he die three minutes later?
Answer: He was an astronaut on a space walk, doing repairs.
Riddle: A group of campers have been on vacation so long, that they've forgotten the day of the week. The following conversation ensues. Darryl: What's the day? I don't think it is Thursday, Friday or Saturday. Tracy: Well that doesn't narrow it down much. Yesterday was Sunday. Melissa: Yesterday wasn't Sunday, tomorrow is Sunday. Ben: The day after tomorrow is Saturday. Adrienne: The day before yesterday was Thursday. Susie: Tomorrow is Saturday. David: I know that the day after tomorrow is not Friday. If only one person's statement is true, what day of the week is it?
Answer: It is Wednesday. If it was any other day of the week, more than one statement would be true. To solve the riddle, evaluate each person's statement and write down what day it could be according to the statement. David's statement indicates it could be any day of the week except for Wednesday. When you list the days that it could be according to everyone's statement, it turns out Wednesday is the day mentioned only one time. Darryl: Sunday, Monday, Tuesday, or Wednesday Tracy: Monday Melissa: Saturday Ben: Thursday Adrienne: Saturday Susie: Friday David: Sunday, Monday, Tuesday, Thursday, Friday or Saturday
Riddle: When may a man's coat pocket be empty, and yet have something in it?
Answer: When it has a hole in it.
Riddle: A little pool with two layers of wall around it. One white and soft and the other dark and hard, amidst a light brown grassy lawn with an outline of green grass. What am I?
Answer: A Coconut.
Riddle: What day would yesterday be if Thursday was four days before the day after tomorrow?
Answer: Friday.
Riddle: Which word is the odd one out: Seventy, Brawl, Clover, Proper, Carrot, Swing, Change, Travel, Sacred, Stone?
Answer: Carrot. When the first and last letters are removed from the other words, they still spell another word.
Riddle: What relation would your father's sister's sister-in-law be to you?
Answer: This person would be your mother.
Riddle: A horse is tied to a five-meter rope in front of an old saloon. Six meters behind the horse is a bale of hay. Without breaking his rope, the horse is able to eat the hay whenever he chooses. How is this possible?
Answer: The rope is not tied to anything else.
Riddle: If a chicken says, "All chickens are liars". Is the chicken telling the truth?
Answer: Answer: Chickens cannot talk.
Riddle: Some try to hide, some try to cheat; but time will show, we always will meet. What am I?
Answer: I am death.
Riddle: All of Mrs. Smith's pets are dogs except one, and all her pets are cats except one. How many cats and dogs does she have?
Answer: Mrs. Smith has one cat and one dog.
Riddle: Why can't the world ever come to an end?
Answer: Because it's round.