Riddle: Adored by few, Feared and hated by many. Mistress of the entire universal reason, Master in the art of numbers. Some may have solved many of your mysteries, But there still much of them to find. What are they?
Riddle: I am a three-digit number. All of my digits are prime. One of the numbers is even. Each of my numbers are used only once. The total of my first and last digits equals 10. The total of my first two digits equals 5.
Answer: This one is fairly easy if you use elimination if you follow all the first 5 steps you get three options: 525, 327, and 723 but if you followed the last step you would reach your answer. The answer was 327.
Riddle: If someone says to you, "I'll bet you \$1 that if you give me \$2, I will give you \$3 in return", would this be a good bet for you to accept?
Answer: No. This is a situation where you lose even if you win. Assuming the other person is being wise, they would take your \$2 and say, "I lose", and give you \$1 in return. You win the bet, but you're out \$1.
Riddle: A bottle costs a dollar more than a cork. Together they cost 110 cents. How much does the bottle cost and how much does the cork cost?
Answer: The right answer is that the bottle costs 105 cents, and the cork costs 5 cents.
Riddle: The distance from the Earth to the Sun is about 100 million miles. The speed of light is 186,000 miles per second, and light takes eight minutes to reach the Earth from the Sun. Let's say the Sun rose at 6am this morning, and that by some freak of physics the speed of light is suddenly doubled to 372,000 miles a second. What time will the Sun rise tomorrow?
Answer: 6am again. After all, what diffrence does the speed of light make to the answer?  It's irrelevant- only the speed of the roation of the Earth matters here.