It's the first number you can't count to on your fingers
6th graders are usually 11 years old.
It's the first double number
It's prime
It's easy to mutiply
The sun spot cycle is 11 years long
It's the fourth number that stays the same when turned upside down.
Mathematicians believe there are 11 dimensions.
WWI ended on the 11th hour of the 11 day of the 11th month.
11 is the first master number in numerology