You walk into a room and see a bed. On the bed there are two dogs, four cats, a giraffe, five cows and a duck. There are also three chickens flying above the bed. How many legs are on the floor?
Since all of the animals are on the bed and no other furniture is mentioned in the room, there are six legs on the floor. Four legs from the bed and your own two legs as you stand in the room, amazed that someone managed to get so many animals onto a bed. And the ceiling must be vaulted to fit a giraffe. Also, who’s on cleanup duty?
Peppino bought a new hat and Tito asked what day he bought it. Peppino replied, “If yesterday was tomorrow, today would be Tuesday.” On what day did Peppino buy his hat?
A couple has two children. At least one of them is a boy. Assuming the probability of having a boy or girl is 50%, what is the probability that both children are boys?
If you answered 1/2, you’re not without comrades, but the generally accepted answer by statisticians (though not without debate) is 1/3. This is because there are four possible combinations: boy-boy, boy-girl, girl-boy and girl-girl. Since we are told one of the children is a boy (but we don’t know if it’s the first or second child), we can rule out the girl-girl combination, leaving three remaining options. Only one out of 3 is boy-boy, so we get a 1/3 chance.
Thanks to the comments, it doesn’t mean anything per se, but it’s a location in Zambia. If that’s all it is, it’s not really a brain teaser, but since we’ve already worked on it, I’m marking it as solved leaving it up for posterity.
Below are former attempts to solve it.
I have yet to figure this one out. NDOLA could mean And lo, or An old, among other things. Pamodzi on the other hand didn’t have any particularly meaningful anagrams. Both words together had over 1,000 anagrams.
I haven’t come up with any other possible meanings.
I have five letters and people eat me. When you remove my first letter I become a crime. Remove my first two letters and I am an animal. If you remove my first and last letters I’m a form of music.