63 Days Gestation for a Cat - The domestic cat has a nine week pregnancy. :o)
10 Christmas cards in a set of cards
23 Pairs of Chromosomes (in a Human Body)
I reckon it's likely to be Turn of The Century
2 Ugly Sisters/Stepsisters in Cinderella
300 Length of Noah's Ark in Cubits
6 Correct numbers to win the lottery
31 Ice Cream Flavors at Baskin-Robbins
52 cards in a deck without the jokers
9 C of H in D I? 9 circles of hell in Dante's inferno.
To convert Fahrenheit to Celsius, you can use the formula: C = (F - 32) * 5/9. So for 63°F: C = (63 - 32) * 5/9 C = 31 * 5/9 C ≈ 17.22°C.
ten commandments
32 Counties in Ireland