A smart landscaper is given the task of placing 4 trees so that they are all the same distance away from each other. How does he do this?
Riddle AnswerHard Riddles
Half Full Barrel Puzzle
Two workers in a brewery are trying to settle an argument over how much beer is inside a barrel. One worker thinks the barrel is more than half full while the other says it’s less than half full.
How can they settle the argument without using any measuring tools?
Note: the top of the barrel can be easily removed.
Riddle Answer5 Islanders
Alex came across 5 islanders, all of whom knew one another and would only answer yes-or-no questions.
What is the minimum number of questions Alex needs to ask, to successfully determine how many of the islanders are paladins?
Riddle AnswerProbability That Both Children Are Boys
Mr. Smith has two children. At least one of them is a boy. What is the probability that both children are boys?
Riddle Answer2 Eggs 100 Floors
You are given two eggs, and access to a 100-storey building. Both eggs are identical. The aim is to find out the highest floor from which an egg will not break when dropped from a floor. If an egg is dropped and does not break, it is undamaged and can be dropped again. However, once an egg is broken, it cannot be used anymore.
If an egg breaks when dropped from floor N, then it would also have broken from any floor above that. If an egg survives a fall from floor N, then it will also survive any fall below floor N.
What is the minimum number of egg drops required to find the solution?
Riddle Answer