This is such a game changer (no pun intended!) in our house. We keep this on the table and take it in turns to pull out a stick and ask a question.
Each stick is double sided, with a question for grown ups on one side, and kids on the other.
There's trivia, problem solving, acronyms and a few more, and our 6 year old is able to read and answer most of these, so we reckon it's good from age 5 and up.