Use "puzzler" in a sentence

1. ‘The first puzzler is why was Twinn wearing a bulletproof vest?’ John Strait let what he had just said hang in the air for a moment before he pressed on, ‘Now it gets complicated

2. This to Gordon was a puzzler

3. is a skill any true puzzler has to develop – be patient with yourself as God puts you

4. Turkey was the puzzler that kept me awake: why hang around if