Octets do.
what come in groups of four
Cats have 9 lives
Paychecks for a year if you get paid every two weeks, usually.
7 groups, with 3 in each3 groups, with 7 in each21 groups, with 1 in each1 group, with 21 in each
Units of electricity (1KW - 1000W) Units of weight (1 tonne = 1000 Kg)
Soda comes in groups of 6
days
eggs
tires
Octets do.
quintuplets
what comes in groups of 12
Fingers and toes?
baseball teams
Bakers dozen
One thing that comes in groups of three is the 3 little pigs. The Holy Trinity is a group of three as is the primary colors.