The crossword puzzle kept her busy for hours.
The math problem will puzzle even the experts.
She’s fascinated by solving puzzles.
He rarely managed to solve the puzzle.
He attempted to solve the puzzle again.
They are absorbed in solving the puzzle.
We repeatedly failed to solve the puzzle.
We are sharp enough to solve this puzzle.
She attempted to solve the puzzle repeatedly.
It takes patience to solve a difficult puzzle.
They were too focused not to solve the puzzle.
She challenged him to solve the puzzle without help.