If an earthquake is 1 point higher on the Richter Scale than another earthquake which is actually 10 times stronger, how much stronger would an earthquake be if it was just half a point higher on the Richter scale?
In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat. Can this even be possible?
What is in seasons, seconds, centuries and minutes but not in decades, years or days?
If two's company, and three's a crowd, then whats four and five ?
Twice ten are six of us, Six are but three of us, Nine are but four of us; What can we possibly be? Would you know more of us? Twelve are but six of us, Five are but four, do you see? What are we?
81 x 9 = 801. What must you do to make the this equation true?
When can we add 2 to 11 and get 1 as the correct answer?
I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?
I have a head like a cat and feet like a cat, but I am not a cat. What am I?
Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?
Which is the rope you never skip with?
In the 1920s, people feared that crossword puzzles would contribute to illiteracy.
