Dancing on a Dime - 1940 was released on:
USA: 1 November 1940
If you have a 1940 Roosevelt dime it is fake. The Roosevelt dime was not produced by the US Mint until 1946.
They don't exist, the first Roosevelt dime was 1946. With a date of 1940 the dime is a MERCURY dime and is common with average values of $1.00-$3.00 depending on condition.
Ten cents was the value of the dime in 1940.
A Strike in a Dime Museum - 1900 was released on: USA: July 1900
1940 dime were only made from 90% silver. See the related question below for more information.
A Dime Novel Detective - 1909 was released on: USA: 1 March 1909
You're Not Getting a Dime - 2006 was released on: USA: 18 November 2006
Dime Novel Dan - 1909 was released on: USA: 15 May 1909
If it is a circulated dime, then it is worth about $1.00, mostly depending on the value of silver
A 1940 Mercury dime (not Liberty) is very common. If it shows any wear, the value is just for the silver, about $1.90.
Priceless. No barber dimes were minted anywhere near 1940.
Design on a Dime - 2001 Happy Hacienda was released on: USA: 18 June 2008