Four sisters—Anna, Beth, Clara, and Diana—each play a different instrument: flute, violin, piano, and harp. Anna does not play the piano or harp. Clara plays a string instrument, but not the harp. Beth plays neither the flute nor the piano. What instrument does Diana play?
Piano.
String instruments are violin and harp. Clara plays a string instrument other than harp, so Clara plays violin. Beth doesn't play flute, piano, or violin (taken by Clara), so Beth plays harp. Anna doesn't play piano, harp, or violin, so Anna plays flute. This leaves the piano for Diana.
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: Medium. More like this: Logic riddles with answers or try Einstein's Logic Grid for a different kind of puzzle.
More logic riddles
I lead Santa's sleigh with a glowing red nose. Who am I?
A line goes: flower, seed, flower, seed, flower. What comes next?
The leprechaun is bigger than the gold coin, and the rainbow is bigger than the leprechaun. Which one is the middle size?
A farmer has a rectangular field twice as long as it is wide. He constructs a straight fence across the field, parallel to the shorter sides, dividing it into two smaller enclosures. One enclosure is a square with an area of 400 square meters. What is the total area of the original field?
A farmer has a cylindrical water tank. The tank is 4 feet tall and has a radius of 2 feet. If it is currently filled to exactly half its capacity, how many cubic feet of water are inside? (Use pi as 3)
I come in a card with a poem inside that begins "Roses are red." What am I?