If they are old enough yes, but all silver quarters are worth more than face value.
Leaving aside any numismatic or (for coins issued in 1964 or before) silver value, 20 quarters equals 5 dollars.
1961 is not a rare date for Washington quarters. If it has any wear, the value is about $5.00 just for the silver.
Any quarters minted before 1965 contain 90% silver and are worth several times face value.
1965. Any US quarters dated 1964 or earlier are 90% silver.
Washington quarters dated 1932-1941 are 90% silver coins, in this date range any coin with a mintmark has a higher collectible value, especially the 1932 with a "D" or "S" mintmark.
1940 is a common date for Washington quarters, if it has any wear at all, value is only for the silver about $6.00.
Quarters and dimes used to have silver in them, although they do not nowadays. The years that quarters had silver in them were any years before 1965.
The date is 1776-1976. None of the bicentennial quarters struck general circulation have any silver or are more than face value.
The US didn't make any silver coins in 1979. The last circulating silver dimes and quarters were dated 1964, and the last silver halves made for circulation were dated 1969.
1951 is a very common date for Washington quarters, if it has any wear, the value is for the silver only, about $3.50. If it has a "D" or "S" mintmark it may be worth a little more depending condition.
Quarters are 90% silver with 10% copper, NOT pure silver. Without knowing any details like the date or condition, it's at worth at least $5 for its melt value.
Any of the state quarters struck of circulation have face value only.