Four houses are painted Red, Blue, Yellow, and Green, numbered 1 to 4 from left to right. Green is in position 4. Blue is immediately to the right of Red. Yellow is not at either end (position 1 or 4). What is the left-to-right order of the colors?
Red (1), Blue (2), Yellow (3), Green (4)
Green is 4. Yellow cannot be 1 or 4, so Yellow is at 2 or 3. Red and Blue are an adjacent pair (Red, Blue). The pair cannot fit in (2,3) because Yellow must occupy one middle spot, so (Red, Blue) must occupy positions 1 and 2. This leaves Yellow for position 3.
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.
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