NUMBERWISE

Observed by Dave Morice in the May 2011 Word Ways:

LUCK requires 7 penstrokes, BLACKJACK 21, FREEZING POINT 32, HOURS IN A DAY 24

· FOUR contains four letters.

· TEN is spelled with ten raised dots in Braille.

· TWELVE is worth 12 points in Scrabble.

· FIFTEEN is spelled with 15 dots and dashes in International Morse Code.

TWENTY-NINE contains 29 straight lines — if you don’t count the hyphen.