Opening Statements

Check Your Reflection

See “Judges: They’re Just Like Us!

Want to compare yourself to the judges? Take the cognitive reflection test and see how well you score. If you get these right, you’re cognitive; get them wrong and you’re intuitive; cheat by looking at the answers under the sidebar heading and you’re human.

  1. A bat and a ball cost $1.10 total. The bat costs $1.00 more than the ball. How much does the ball cost?

  2. If it takes five machines five minutes to make five widgets, how long would it take 100 machines to make 100 widgets?

  3. In a lake, there’s a patch of lily pads. Every day, the patch doubles in size. If it takes 48 days for the patch to cover the entire lake, how long would it take for the patch to cover half of the lake?


Answers: 1. The answer is 5 cents, not 10 cents. 2. The answer is five minutes, not 100 minutes. 3. The correct answer is 47 days, not 24 days.

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