Logic Riddles

Answer: The coin is fake, the dating system that uses B.C. and A.D. wasn't created until the year 525. So it is essentially worthless.

Answer: He's a barber.

Answer: 45 years old.

There is no year 0 so you can add 23 to 23 but you must subtract one to take year 0 out of consideration: 23 + 23 - 1 = 45 years old. In some cultures people are born 1 years old, in this case they would be 46 years old when they die.

Answer: First she has to draw one of the papers and get rid of it (by eating it, throwing it, etc.). Then they will check the hat and she that the other paper says 'YES', so they know that she drew the paper that said 'NO'. In this case, she doesn't have to marry the king.

Answer: 3 minutes. She puts two pieces in the toaster, toasting one side of each. Then she flips one of them, takes one out, and puts the completely untoasted piece into the toaster. Finally, she takes out the toasted piece and puts the two half-toasted pieces of bread into the toaster for a minute and she's done.