21 is the age when you're allowed to drink

Dividing 22 by 7 gives you 3.142857, which is very close to π (pi). It is often used as an approximation of the mathematical constant as the numbers are so close to each other.

In a human, 23 pairs of chromosomes are found.

There is a game called 24 where you have to add/subtract/multiply/divide numbers in order to get a result of 24.

25 is the sum of 1,3,5,7, and 9 (the first 5 positive odd numbers)

There are 26 letters in the english alphabet

there are 28 days in the month of february, except leap years in which there are 29

there are 29 days in a leap year's february

The sum of the first 4 square numbers (1, 4, 9, and 16) total 30.

The score of this football game totals 31

https://www.footballdb.com/games/boxscore/buffalo-bills-vs-cincinnati-bengals-1989010801

the average human adult has 32 teeth

The New England Patriots scored 33 points in Super Bowl 52

It will be June 15th 34 days from now.

the 35th day of any given calendar year is february 4th

36 is the lowest number (other than 0 and 1) that is both triangular and square: When stopping at 8 in the sequence: 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 = 36, and it's the square of 6

(If you're doing 37 please post the Veritasium video I beg haha)

bet

38 is the atomic number for strontium

39 buried 0 found

-40 is the only temperature that is the same in Fahrenheit and Celcius