A three cent stamp will be good forever for US postage. Every US stamp issued since 1861 is valid for postage.
1, so long as it is a 48 cent stamp assuming you are in the United States
There are a number of 5 cent Washington stamps. Without knowing which one it would be difficult to answer the question. Consult a stamp catalog to determine the times they were used in.
One, as long as it is a 44 cent stamp.
The total number of stamps doesn't matter as long as they make a total of 61 cents of postage. You can use one 61 stamp, or a 44 cent with a 17 cent stamp. Or you can use 61 one cent stamps.
Approximately 20 cents a piece (as long as they are unused and in good condition)
One, as long as it is a 44 cent stamp.
Three cents for an ounce covered a long period of time. It was temporarily in effect from 3 November 1917 to 1 July 1919 during World War 1. It was the rate from 6 July 1932 through 1 August 1958, over 26 years.
till its eaten by some thing bigger
Yes you can use an "H" makeup stamp as postage as long as it is not cancelled or being reused. FYI an H stamp is worth 33 cents but a H makeup stamp is only worth 1 cent.
Till the last red cent has been wrung from her adoring fans.
Autumn is three months long.
As of May, 2008, you need one 42 cent stamp to send a letter ANYWHERE in the US, as long as it is no more than about 6 pages long.