1. He looked at me with puzzlement, unable to understand why I made such a decision.
2. This problem has been troubling me, leaving me perplexed.
3. Her attitude towards me suddenly turned cold, leaving me thoroughly puzzled.
4. The content of this book is too profound and leaves me bewildered as I read it.
5. His words and actions always leave people puzzled, unsure of what he is thinking.
6. The answer to this question has always left me puzzled, unsure of how to find it.
7. Her smile leaves me puzzled, unaware of what she is thinking.
8. The explanation of this problem leaves me even more puzzled, I need more information to understand it.
9. His behavior leaves me puzzled, unsure of his true intentions.
10. This puzzle leaves me puzzled, I need more clues to solve it.