Four statues—Bronze, Silver, Gold, and Platinum—stand in a hall. Exactly one contains a hidden key. The Bronze statue says: 'The key is in Gold.' The Silver statue says: 'The key is not in me.' The Gold statue says: 'The key is in Platinum.' The Platinum statue says: 'Gold is lying.' If exactly one statement is true, which statue holds the key?
The Silver statue
If the key is in Silver, Silver's statement ('not in me') is false. Bronze ('in Gold') is false. Gold ('in Platinum') is false. Platinum ('Gold is lying') is true. This gives exactly one true statement. Any other key location yields two or three true statements.
About this riddle
Logic riddles give you a few facts and ask what must be true. List what you know, cross out what cannot be, and see what is left.
Difficulty: Hard. More like this: Logic riddles with answers or try Einstein's Logic Grid for a different kind of puzzle.
More logic riddles
Three friends—Kai, Liam, and Maya—wear different colored hats: red, blue, and green. Kai does not wear red. Liam is wearing the color of the clear summer sky. Maya is not wearing green. If Maya's hat is not blue either, who wears the red hat?
You have three metal balls: A, B, and C. One is heavier than the other two, which are identical in weight. You place A on the left side of a balance scale and B on the right. The left side sinks. Which ball is the heaviest?
The acorn is bigger than the scarecrow, and the squirrel is bigger than the acorn. Which one is the middle size?
Five numbered cups (1 through 5) sit in order from left to right. A coin is hidden under an even-numbered cup. If you multiply the cup number immediately to its left by the cup number immediately to its right, the product is 3. Which cup holds the coin?
What is the next number in this logical sequence: 2, 6, 12, 20, 30, ___?
In a secure facility, a password must be formed using four distinct non-zero digits. The second digit is double the first. The third digit is the sum of the first two. The fourth digit is the difference between the third and the first. What is the password?