You only need one. However, the face value for that one stamp has to be $1.15.
No they are not valid for use in the United States. You must use stamps of the country of origins when mailing something, in this case, the US.
Florida does not have stamps. The Federal Government issues postage stamps, not the individual states. They can be used anywhere in the United States.
The number of stamps needed to send a letter or a post card depend on the value of each stamp. (It is the cost, not the number of stamps that is most important) The cost is different for a card than for a letter. It is also different if you are sending something form Germany to that US than if you are sending from the US to Germany. Each country sets its own fees for mailing. The quickest way to learn what the cost is for any one specific item is to take it to a post office and ask, or to go to a Post Office web site for the country where you will mail the item, and look at their information on international postage costs. for a letter, you may need to know the weight of the letter in its envelope.
Not in the United States. The US Postal Service approves the postage stamps.
The amount of stamps depends on your location. It will take more stamps to send a letter to England from the United States than from Italy.
The United States has issued over the years 47 different stamps showing Abraham Lincoln. A complete list of them can be seen on page 77A of the 2009 Scott Specialized Catalogue of United States Stamps & Covers. In addition, several foreign nations have issued stamps with pictures of Lincoln.
It takes at least 2 forever stamps plus 10 cents.
The Forever Stamps can be used to send one ounce of First Class Mail anywhere in the United States.
NO, Russia is not a Communist nation as is the case here in the United States.
New Mexico is part of the United States. Standard postage will work.
Albert F. Dawson has written: 'Joint resolution for a special Lincoln postage stamp' -- subject(s): United States, On postage stamps, Resolutions, United States. Congress, Commemorative postage stamps
Frank E. Goodwin has written: 'The making of United States stamps' -- subject(s): Postage-stamps