It's an ordinary circulation coin - hundreds of millions were minted. If you found it in change, it's worth exactly a nickel. A nice uncirculated one might go for 25 to 50 cents depending on quality.
Still only 5 cents.
All US nickels (except for silver war nickels) are 75% copper and 25% nickel, with a present melt value of 4.9 cents.
A fifty cent piece and a nickel. One is not a nickel, but the other one is.
There's never been a gold nickel. Your coin is either plated or was affected by exposure to heat or chemicals. Either way, it has no added value.
If you found it in change your nickel is only worth face value. US nickels made from 1866 to mid-1942 and from 1946 to the present are made of a copper-nickel alloy, not silver. In fact, no circulating US coins have contained any silver since 1969.
It's the usual practice of this site to answer a single question at a time. Please see:"What is the value of a 1940 US nickel?""What is the value of a 1942 US nickel?""What is the value of a 1944 US nickel?"
It has no significant collector value.
Please check your coin again. Liberty head nickels were struck from 1883 to 1912. A 2007 nickel would be a familiar Jefferson nickel, and it's only worth face value.
As of 16 Feb 2018, the melt value of one US nickel is 4.4 cents.
This design is called either a buffalo nickel or an Indian head nickel; both names are about equally common. Please see the question "What is the value of a 1919 US nickel?" for more information.
The US nickel was first issued in 1866. Please double-check your coin.
5 cents.
A 1957 nickel is worth face value only, unless it's uncirculated or a proof coin.
In average condition, both coins are only worth their face value.
Unlikely. It is not a low mintage year. Unless the US dollar collapses in value, it isn't going to be worth more than 5 cents in our lifetimes.
Average current retail value is $5.00
Check that coin again. The first U.S. nickel was issued in 1866.