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?
What is the word or phrase?
It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?
You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?
What does a man do only once in his lifetime, but women do once a year after they are 29?
You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.
Wednesday, Steve and Pam go to a restaurant to eat lunch. After eating lunch, they pay the bill. But Steve and Pam do not pay the bill. So…who does?
If you say my name, I will no longer exist. What am I?
What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?
I had an infinite supply of water and 5 litres and 3 litres jars. How would you measure exactly 4 litres in the least number of steps?
How much will a 38° angle measure when looked at under a microscope that magnifies ten times?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
