You have a lighter and two fuses that take exactly one hour to burn, but they don’t burn at a steady rate. For example, one fuse could take 59 minutes to burn the first inch and then burn the rest of the fuse in the last minute.
How would you use these two fuses to measure 45 minutes?
Light the first fuse on both ends and the second fuse at only one end. When the first fuse burns out you know 30 minutes have passed. Light the other end of the second fuse and when it burns out, 45 minutes have passed.
Pawns in a chess game. There are eight pawns and they are only permitted to move forward, not backward and the primary objective in chess is to protect the king.
You have fifty quarters on the table in front of you. You are blindfolded and cannot discern whether a coin is heads up or tails up by feeling it. You are told that x coins are heads up, where 0 < x < 50. You are asked to separate the coins into two piles in such a way that the number of heads up coins in both piles is the same at the end. You may flip any coin over as many times as you want.
7. The digits represent the number of letters in each word of the puzzle. “What” has four letters, “digit” has five letters, “should” has six letters, etc. The last word is “numbers” which has seven letters.
First think of a person who lives in disguise, who deals in secrets and tells naught but lies.
Next tell me what’s the last to mend, the middle of middle and the end of end.
Finally give me the sound often heard during the search for a hard to find word.
Now string them together and answer me this, which creature are you unwilling to kiss?
A spider. The person in disguise is a spy, the letter d is the last letter in mend, in the middle of middle and the last letter of end. When someone can’t think of a word they often say, “Err”. And lastly, I don’t know about you, but I’m not keen to kiss a spider.