Complex sentence: Typical tell-tale features of these puzzles include any puzzle in which each participant has a given piece of information about all other participants but not themselves; also, usually some kind of hint is given to suggest that the participants can trust each others intelligence.
Split into simpler sentences: Typical tell-tale features of these puzzles include any puzzle in which each participant has a given piece of information about all other participants but not themselves. Also, usually some kind of hint is given to suggest that the participants can trust each others intelligence.