While the answer to a riddle can simply be called an answer, the term "solution" is also applicable. Either term is usually acceptable, although the type of riddle helps delineate which word is best for the riddle in question.
What gets wetter and wetter the more it dries?" is an example of a tricky riddle that plays on contradiction. The answer is "a towel."
You can find answers to riddles at GoodRiddlesNow.com or at BrainDen.com. Both GoodRiddlesNow and BrainDen have many different riddles to look up and see the answers to.
An example of a short riddle is, "Brothers and sisters I have none but this man's father is my father's son. Who is the man?" The answer is the man is the riddle teller's son. Another riddle is, "Who can travel around the world while staying in a corner?" The answer is a stamp. Another riddle says,
The answer to this riddle is a mirror. Whatever is put in front of the mirror will be turned around in the reflection seen, but the mirror does not move.
"Clock" is the answer to the riddle, "What has hands but no arms and a face but no eyes?" A clock is also the answer to, "Without fingers, I point, without arms, I strike, without feet, I run. What am I?"
The answer to the riddle is a key. The riddle in its entirety asks, "What force and strength cannot get through, I with a gentle touch can do. And many in the street would stand were I not a friend at hand. What am I?" .
Some fun riddles include "What has a foot but no legs?" to which the answer is "A snail." More funny riddles and their answers are available on the Funology website.
A funny trick riddle involves telling someone that she is the driver of a school bus, and nine children get off at the first stop, then another six kids hop off at the following stop. Then, the person telling the riddle asks what color are the bus driver's eyes.
The answer to the riddle, "What is an alien's favorite sport" is spaceballs. This riddle is found at level 76 of the game "What The Riddle," which is an application available on Android, iPhone, iPad and iPod.