Riddle: A man decides to buy a nice horse. He pays $600 for it, and he is very content with this strong animal. After a year, the value of the horse has increased to $700 and he decides to sell the horse. But already a few days later he regrets his decision to sell the beautiful horse, and he buys it again. Unfortunately he has to pay $800 to get it back, so he loses $100. After another year of owning the horse, he finally decides to sell the horse for $900. What is the overall profit the man makes?
Riddle: If the only frying pan in the house is large enough to cook two pancakes at a time and pancakes take one minute to brown one side, how can you make three pancakes in three minutes?
Answer: Pour two pancakes and brown the first side. After the first side is done, flip one, take the second off, and pour the third pancake. After another minute, take the first one off, flip the third one, and put the second one back on. Cook both pancakes until finished.
Riddle: Susy is traveling by ship from south of the equator to the north. She has a nice little cabin with a bathroom, but no window. Sally has no compass nor other instruments. Just the general luggage one brings on board a long cruise. Yet, without leaving her room or talking with anyone, Susy will be able to tell when the ship has crossed the equator. How?
Answer: Susy can fill the sink and watch it drain. When the water reverses direction when going down the drain, she will know they have crossed the equator.