More than 12 varieties were made. See the related link below for the values.
The first $20 Federal Reserve Notes were dated 1914. Please check your bill again and post a new, separate question.
There were no series letters on any 1929-dated US bills. A large "G" indicates that the bill was distributed through the Chicago Federal Reserve District. There's more information at the question "What is the value of a 1929 US 5 dollar Federal Reserve Note?"
If very worn, about $15. Moderate wear, about $30
Please check your bill again and post a new, separate question. The Federal Reserve System wasn't established until 1913 and the first Federal Reserve Notes are dated 1914.
Please check your bill again and post a new, separate question. The US didn't print any $50 Federal Reserve Notes dated 1923. Your bill may be dated 1928.
The only Federal Reserve Notes dated 1976 are $2 bills. In circulated condition they have no added value.
Please check again and post a new, separate question. No US bills are dated 1961.
Please check your bill again and post a new, separate question. No $1000 FRNs were dated 1914.
Face value only.
If the bill is dated 1963 or earlier please look for questions in the form "What is the value of a US 2 dollar bill."If the date is 1976 or later, all the "A" means is that the bill was distributed by the Boston Federal Reserve District. Unless it's in pristine condition, a $2 Federal Reserve Note is worth face value only.
"D" is the highest letter for all 1934-dated $10 bills regardless of whether they're silver certificates or Federal Reserve Notes. If the "J" is in a large circle to the left of Hamilton's portrait, please check the banner across the top of the bill - it's almost certain you have a Federal Reserve Note and not a silver certificate. There's more information at the questions > "What is the value of a 1934 US 10 dollar silver certificate?" > "What is the value of a 1934 US 10 dollar Federal Reserve Note?"
A denomination is needed. Please look for questions in the form "What is the value of a 1928 A US [denomination] dollar Federal Reserve Note?" for specific information.