Which of the following cards should you turn over in order to test the truth of the proposition that if a card shows an even number, then its opposite face shows a primary colour? Answer:

You are at the center of a 20m equilateral triangle with a raptor at each corner. The top raptor has a wounded leg, and is limited to a top speed of 10m/s, the other two have a top speed of 25m/s. Your top speed is 7m/s. At what angle should you run to maximize the time that you stay alive? Answer:

How would you rate your willingness to stare into the unblinking eye of infinity?

I disappear for four days. You haven't seen or heard from me. Call me. Something might be wrong. Just wait. I'll call sometime. If I'm not dead already, I soon will be. Decide to dump me, let me know whenever I end up calling.