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“John is 10 years old in 1870, but only 5 years old in 1875. How is this?”
― M. Prefontaine, Difficult Riddles For Smart Kids: 300 Difficult Riddles And Brain Teasers Families Will Love

“A boy at a carnival went to a booth run by a man who said, "If I can write your exact weight on this piece of paper then you have to give me $50, but if I cannot, I will pay you $50." The boy looked around and saw no scale so he agreed, thinking no matter what the carny writes he'll just say he weighs more or less. In the end the boy ended up paying the man $50. How did the man win the bet?”
― M. Prefontaine, Difficult Riddles For Smart Kids: 300 Difficult Riddles And Brain Teasers Families Will Love

“And the 100th reason why you should do your homework is so that you become a great leader like him,” Emma pointed towards me, “Otherwise, you’ll end up like him.” Emma pointed at Jack. “Hey!” Jack complained.”
― Write Blocked, Raiders of Null

“Two convicts are locked in a cell. There is an unbarred window high up in the cell. No matter if they stand on the bed or one on top of the other, they can’t reach the window to escape. They then decide to tunnel out. However, they give up with the tunneling because it will take too long. Finally, one of the convicts figures out how to escape from the cell. What is his plan?”
― M. Prefontaine, Difficult Riddles For Smart Kids: 300 Difficult Riddles And Brain Teasers Families Will Love