A friend alerted me to this fun test:
http://www.donkeytest.com/

The questions are stimulating, if maybe a bit dated (eg. lots of limping going on).

Was pretty happy to score 117, and consider it realistic (winner at the smallest raked games).

What's your score?

Ps. There's even the question from the Rounders movie. And sorry if this is old and known to everyone!