Related surveys:

What is your date of birth?

How old are you?

What is your year of birth?

Random statistics:

Do you sleep enough? How often do you manage to sleep enough?

Question:

We want to create a free worldwide statistical database. You can help to make it a little bit more interesting by answering several questions like this one:

 

How would you estimate these statistics? useful Yes No 100% interesting Yes No 100% incorrect question Yes No 0%

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