We have published a couple of puzzles where you were required to produce sums (say from four fours) that equal as many numbers as possible. That puzzle is here if you are interested.
This time you are not required to produce sums, but rather descriptions of the numbers.
One has Three letters, Two also has Three letters, Three has Five letters, and Four has Four letters, and is the only number that has this property. What you have to do is produce phrases that describe a number in that number of letters, for as many numbers as possible.
The descriptions must be universal; you can't have "The number bus I catch to work" for 24. And from this you can deduce that spaces don't count, only letters.
See how many you can get.
Here is the list we have. Some might be considered a bit "iffy", but we have a list up to 25.
1 = I
2 = Bi
3 = Tri
4 = Four
5 = A Five
6 = One Six
7 = Six Et Un
8 = Two Cubed
9 = One Off Ten
10 = Nine And One
11 = Nine Plus Two
12 = Nine And Three
13 = Twelve Plus One
14 = Thirteen And One
15 = One Half Of Thirty
16 = Thirteen And Three
17 = Four Squared And One
18 = One Half Of Thirty Six
19 = Half Of Forty Minus One
20 = One Half Of Twice Twenty
21 = One Times Eleven Plus Ten
22 = Two Times Eleven Plus Zero
23 = Four Plus Four Plus Fifteen
24 = Five Squared And One Removed
25 = Five Squared With Zilch Added