Whodunnit Daily — Answer for July 12, 2026
Today's case: The Switched Keys. The vault keys had been swapped for dummies. 5 tellers worked the branch. A hint first, then the culprit and the full reasoning. Tap the blacked-out box to reveal.
The statements
- Zoe: “Jad is innocent.”
- Finn: “Zoe is telling the truth.”
- Joss: “I didn't do it.”
- Otto: “Jad is innocent.”
- Jad: “Otto is telling the truth.”
Hint
Find the statement that can't be true alongside the others. The suspect it implicates — or the one whose own claim collapses — is your liar.
The culprit
Guilty: Joss
Why (step by step)
Start by assuming Joss is the guilty one and follow the chain. Zoe said “Jad is innocent.” — that holds up, and an innocent person tells the truth — consistent. Finn said “Zoe is telling the truth.” — that statement is true, so this person can sit on the innocent side — no conflict. Joss said “I didn't do it.” — that is FALSE — and the guilty one is the single liar, so this fits. Otto said “Jad is innocent.” — checks out as true, matching an innocent’s honest account — consistent. Jad said “Otto is telling the truth.” — that is TRUE, which is exactly what an innocent suspect must say — fine. All 5 statements stay consistent only when Joss is the liar. Test any other suspect and the truth/lie pattern breaks somewhere, so Joss is the unique solution.