12 W of the W

12 S of the Z

66 B of the B

52 C in a P (W J)

13 S in the U S F

39 B of the O T

18 H on a G C

5 T on a F

90 D in a R A

3 B M (S H T R)

Twelve wonders of the world.

Twelve signs of the zodiac

Sixty-six books of the bible

Fifty-two cards in a pack (without jokers)

Thirteen stripes in the United States flag

Thirty-nine books of the Old Testament

Eighteen holes on a golf course

Five toes on a foot

Ninety degrees in a right angle

Three blind mice (see how they run)