The word puzzles is correct and usable in written English.
You can use it to describe an object or activity that requires problem solving. For example: Johnny loves to solve puzzles in his spare time.
Among the puzzles vexing investigators are how a man who had lost almost seven pints of blood could have made his way 70-odd miles across country - and what happened to him in the at least three days that he was missing.
The games are a mixture of trivia questions and other puzzles: fans will love it.
Before each solve, puzzles are scrambled according to a computer program, to ensure that all competitors begin from the same positions.
There is a cafe selling hot food and breakfasts plus a games room well-stocked with puzzles and board games.
My son plays games from kids' apps on our phones, but they have to be educational – puzzles or problem-solving.
As could Herman Van Rompuy, chairing the Ypres summit and trying to solve one of the trickiest puzzles the Belgian has ever grappled with.
(Occasionally, faster puzzles pose problems. An overzealous turn can cause them to misalign or, in extreme cases, explode).
The rise of Die Linke (the Left) in Germany is one of Europe's great political puzzles.
If he does, though, he will have proved himself a great geological detective, for he will have been responsible for solving one of the biggest puzzles in palaeontology.
And in similar vein, Westin Hotels invites guests to enjoy canapés and Sudoku puzzles together at its "Unwind" evenings.Gulliver would be interested to know how many hotel guests really want to relax in the evening with a spot of group Sudoku, but Westin's motivation is sensible enough, and it's good to see hotels taking an interest in their guests' social needs.
The justices seemed to enjoy the intellectual puzzles for a while.
