The answer to the first one is “29 days in February in a leap year.” Complete the rest.

29 D in F in a L Y

12 S of the Z

7 W of the A W

54 C in a D (with the J)

32 D F, at which W F

18 H on a G C

4 Q in a G

Answers:

12 signs of the Zodiac

7 wonders of the ancient world

54 cards in a deck (with the jokers)

32 degrees Fahrenheit, at which water freezes

18 holes on a golf course

4 quarts in a gallon/4 quarters in a game