A score.
The decimal number for six and twenty-three twenty-fifths is 6.92
It is twenty.
Twentyone follows twenty
20,020
21 is not a prime number.
Twenty-four is 120% percent of what number?
Twenty thousandths in number form = 0.020
The mixed number for twenty sevenths is 26/7
The mass number of an atom of calcium with twenty protons and twenty neutrons is 40. This is because the mass number is the sum of the protons and neutrons in the nucleus of an atom.
Twenty eight = 28
Twenty is an integer. Not sure what you mean with "in humans".
27,320 is a number, the number twenty seven thousand three hundred and twenty.