Riddle: What is both possible and impossible at the same time?
Answer: Impossibility.
Riddle: I never was, am always to be. No one ever saw me, nor ever will. And yet I am the confidence of all, To live and breathe on this terrestrial ball. What am I?
Answer: Tomorrow.
Riddle: What has cities, but no houses; forests, but no trees; and water, but no fish?
Answer: A map.
Riddle: Captain Kirk of Star Trek has the usual left ear and right ear, but he also has a third ear. What is his third ear called?
Answer: The final front ear.
Riddle: Alive without breath, As cold as death, Never thirsty, Ever drinking, Clad in mail, Never clinking, Drowns on dry land, Thinks an island, Is a mountain, Thinks a fountain, Is a puff of air. What is it?
Answer: A fish.
Riddle: What's the word inside the riddle?
Answer: The iddl.
Riddle: A guy bet his neighbor 50 bucks that his dog could jump higher than a house. Thinking this was not possible, the neighbor took the bet and lost. Why did he lose the bet?
Answer:

A house can not jump!

Riddle: What gets harder to catch the faster you run?
Answer: Your breath
Riddle: What word is spelled incorrectly in the dictionary?
Answer: Incorrectly.
Riddle: What can hold water even though it has holes?
Answer: A sponge.