Four suspects in witch costumes stand in a lineup. Witnesses say the thief wore a black robe with silver star patches hastily attached right before the robbery 10 minutes ago. Witch 1's stars are stitched with old yellow thread. Witch 2's stars are attached with damp, wet craft glue. Witch 3's stars are embroidered directly into the fabric. Witch 4 has no star patches. Which witch is the thief?

Three kids race to build the tallest flower tower. Leo finished before Eli. Omar finished before Leo. Who finished last?

Detective Marlowe found a cipher written on a mirror in lipstick: '5-15-1-19-20.' He immediately identified the victim's jealous roommate as the culprit without needing a decoder ring. How did Marlowe read the message?

A courier was ambushed in a desert oasis, and his map to a lost treasure was stolen. Three nomads were resting nearby. Nomad A had wet hair and claimed he had been swimming in the spring. Nomad B had dry sand on his knees and claimed he had been praying facing east. Nomad C had a wet canteen and claimed he had been rationing his water. The detective immediately identified the thief. Who was it?

Detective Vance examined a blackmail letter sent to the mayor. The writer threatened to expose a secret unless paid 50,000 dollars. The letter was composed entirely of words cut out from the morning newspaper. Vance noticed that the word 'mayor' was spelled with a lowercase 'm', even though it appeared at the beginning of a sentence. He smiled and knew the blackmailer was a professional journalist. Why?

A wealthy merchant was murdered in his study. The safe was emptied, and a note was left reading: 'I took the gold at midnight under the light of the harvest moon.' Detective Vance knew instantly the note was a fake written by the butler, because the merchant was murdered in June.

Inspector Frost is checking the order in which five suspects left the locked library. Gwen left before Boris. Boris left before Jonas. Elena left before Gwen. Hugo left before Elena. Who left fourth?