Complicated ways to say eighty

[Mathius]

I need a riddle whose answer is eighty. It can be an equation or riddle but I would like two simpler forms for successful int checks.

Do not worry, the PC can by pass the riddle with a sledge hammer or DD check. They just get a bonus for solving the riddle.

There are some pretty hard core math guys in the group so calculus is not beyond them but they would be quite rusty.

[David knott 242]

This might be too easy but:

What is five dozen plus a score?

[GM Rednal]

Tilt your head and you will see
Infinity above the void
And if your age is more than mine
You're probably unemployed

[Fuzzy-Wuzzy]

Does context tell them the answer must be an integer, or what?

[Orfamay Quest]

Five men sat in sylvan wood
and rested and enjoyed their food
four rolls of bread did each one take
and each roll did four pieces make
For every piece, a bit of meat
How many bits this luncheon treat?

[Orfamay Quest]

Alternatively,

Hey git, twisted as you be
You'll never make a century

"Hey git," of course, is an anagram ("twisted") for eighty. So it's less a math puzzle than a language puzzle.

[Orfamay Quest]

If you simply want an equation,

x^2 -160x + 6400 = 0

The only solution to this is the double root x = 80, and it only takes high school algebra to solve.

[Scythia]

In the village of Abead, there were thirty houses. 25 houses were occupied by a married couple, three houses were occupied by single people, and two were vacant. Of children there were some, one family had five, four families had three, and six had one. Four families also housed one grandparent.

How many lived in Abead?

[Grumpus]

this is a stretch but,

"a fumble then a critical"

The answer is 1=fumble, 20=critical.

letter #1=A
letter #20=T

say the letters one at a time A...T=eighty!