There are 25 horses and you need to figure out the 3 fastest horses by placing them into races. You can race 5 horses at a time. Each horse always finishes the race in the same amount of time and there are no ties. The only information you get from each race is the order that the 5 horses finished in. You will not get any information regarding the time taken for the horses to complete the race.
What is the smallest number of races you need to find the 3 fastest horses in order?
Riddle AnswerA guy claims to do the following thing. He puts a coin in a glass bottle. Then, he shuts the mouth of the bottle with the help of a cork. Now he manages to remove the coin out from the bottle without taking out the cork or breaking the glass bottle.
Do you know how he can do it?
Riddle AnswerWhen purchased together, a pair of binoculars and the case cost $100. If the binoculars cost $90 more than the case, how much does the case cost?
Riddle AnswerA man has 5 pieces of chain that must be joined into a long chain. He can open ring 3 (first operation), link it to ring 4 (second operation), then unfasten ring 6 and link it to ring 7, and so on.
He could complete his task in 8 operations, but he wants to do it in 6. How does he do it?
Riddle AnswerYou walk into a dark room in which 100 coins are scattered around on the floor. 10 of them are heads up, 90 are tails up.
You cannot feel, see or in any other way find out on which side the coins are. How can you split the coins into two piles such that there are the same number of heads in each pile?
Riddle Answer