Twenty of anything is called a 'score'
"Life plus 20 years" refers to the duration of copyright protection, which lasts for the life of the creator plus an additional 20 years after their death. This means that the copyright on a work remains in effect for 20 years after the creator passes away.
Shay Given is 41 years old (birthdate: April 20, 1976).
20 years.
20 years old
Four hours and twenty minutes earlier in math can be calculated by subtracting the given time duration from the current time.
The duration of Telemiracle is 20 hours.
20+20
Patents generally last for 20 years from the first date of filing for priority. Patents filed prior to 1995 in the USA, however, may have a duration of 17 years from the date of ISSUE, or 20 years from filing, whichever is longer. Patents on medicine often obtain statutory extensions, under US law, for certain delays caused by FDA review. This can substantially increase the patent duration beyond 20 years.
Given good conditions I have known them live for 20 years.
Between 20 and 30 years if given good care.
Gunsmoke : The radio version ran from 1952 to 1961 and the TV series ran for 20 seasons from 1955 to 1975 .
For any given date (such as April 20), one out of every seven years it will fall on any given day of the week - at least, that's what happens in the long-term average.