Hard Riddles Page 12 of 14
Some tough riddles. Can you figure out the answers to some of these really hard riddles? One of the math riddles or logic riddles might stump you.
111. Can you determine what the 6th number in the series is.
1, 2, 6, 42, 1806, ___?
112. Along a street there are 8 Honda cars, 10 Nissan cars, and 13 Alfa Romeo cars.
How many Suzuki cars are there?
113. A king is trying to decide which of his sons will become heir to the throne. He decides that they will have a horse race. He tells them that the one with the slowest horse will become the heir. The two men start the race and they both use every tactic they can to stay behind the other brother; so the king stops the race. He then tells them something that will ensure a fair and speedy race. What does he tell them?
114. What number should logically replace the question mark?
7 11 20 36 ? 97 146
115. One boy can eat 100 chocolates in half a minute, and another can eat half as many in twice the length of time. How many chocolates can both boys eat in 15 seconds?
116. The number 8,549,176,320 is special and the only one of its kind. Can you determine what is so special about it?
117. A man and his son are driving home from a basketball game when they have a terrible accident. The man is taken to the emergency room for treatment and the boy is taken straight to the operating table. The surgeon comes over to the operating table, sees the boy and says "I can't operate on this patient, he's my son!" How can this be?
118. You have three ropes of equal length that are not attached to anything. If you were to light one end of a rope it would burn for exactly one hour. You have a lighter and you must measure a time of one hour forty five minutes. How do you do it?
119. A mathematician is 24 years older than his son. The son is 25 years older than his son (the mathematician's grandson). Together, the mathematician and the grandson are 73 years old. How old is each person?
120. In a singles tennis tournament, 111 players participated. They used a new ball for each match. When a player lost one match, he was eliminated from the tournament. How many balls did they need?
