Fictionary: one of the funniest, most educational thinking games, bringing out the etymologist in us all.

Number Boggle: open-ended, creative play with numbers.

Questions: a contest of verbal agility and often philosophical reasoning.

Three Penny: most of the thinking here is geometric.

Systems: a funny, clever, creative game that's perfect for small or large groups to become quick friends.

Water Quiz: a thinking game where ignorance is refreshing.