Close your eyes and picture an apple. How clearly do you see it?

Pick an answer, then guess how everyone answered: a share, or an average. You’ll see the actual result and, once enough people have answered, how it differs by country and age.

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• At what age does someone become old, in your view?
• When you think, do you hear words in your head?
• If you had to choose: freedom or security?
• What age would you like to live to?
• Do you believe in ghosts?
• Do you believe in life after death?