Only 'twenty' showed up for the review session.
We spent forty dollars and had 'twenty' left.
It was a 'twenty-'hour flight.
(..) but bear in mind you could lose it all if you're not careful. Out of all men that beg for a chance to drill your lots, maybe one in twenty will be oilmen. The rest will be speculators, that's men trying to get between you and the oilmen to get some of the money that ought, by rights, come to you. (..)2007 There Will Be Blood