Four friends are sitting in a single file line on a bench facing forward. Alice can see Bob, Charlie, and Diana. Bob can see Charlie and Diana. Charlie can see only Diana. Diana can see no one. Who is sitting at the very back of the line?
Alice
Alice can see all three of her friends in front of her, which means she must be seated at the very back of the line.
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: Easy. More like this: Logic riddles with answers or try Einstein's Logic Grid for a different kind of puzzle.
More logic riddles
You have an empty 7-liter bucket, an empty 4-liter bucket, and an unlimited supply of water. Neither bucket has any measurement markings. How can you measure out exactly 5 liters of water into the 7-liter bucket?
A train leaves Station A heading east at 60 mph. One hour later, another train leaves Station A heading west at 40 mph. How far apart are the two trains 2 hours after the second train starts moving?
Two fathers and two sons went fishing. Each caught exactly one fish, yet they brought home only three fish total. How is this mathematically and logically possible?
An ancient fortress has four outer gates facing North, South, East, and West. A traveler starts at the North gate, walks 3 miles South, 3 miles East, 3 miles North, and then 3 miles West. Exactly which gate is the traveler standing in front of now?
The turkey is bigger than the pie, and the pumpkin is bigger than the turkey. Which one is the middle size?
A line goes: shell, ice cream cone, shell, ice cream cone, shell. What comes next?