The original meaning of the word grocer was referring to a person who traded food in wholesale. These people would usually sell in large quantities, or by the "gross."

A chance of a woman having twins is increased after the age of 35. About 1 in 27 women will give birth to twins after this age. After 50 the chances of having twins is 1 in 9.

There are 21 "secret" highways that are part of the Interstate Highway System. They are not identified as such by road signs.

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