Probably around $125
If it has a brown seal, $30 to $200 depending on condition
Probably $50 unless it is in special condition.
Assuming it has a brown seal and is labelled "National Currency", your bill is worth $25 to $35 retail.
There are two different kinds of 1929 $20 bills. One type of 1929 $20 bill is the Federal Reserve Bank Note. These 1929 twenty dollar bills will generally not be worth more than a few times face value due to their large printing numbers. 1929 $20 bills that are Federal Reserve Bank Notes will say Federal Reserve Bank of Boston, New York, Philadelphia, Cleveland, Richmond, Atlanta, Chicago, St. Louis, Minneapolis, Kansas City, Dallas, or San Francisco. If one of these 1929 $20 bills has a star symbol in the serial number it will be worth much more than a few times face value. The other kind of 1929 twenty dollar bill is the 1929 national bank note. The 1929 national banknotes can be worth a few dollars over face value to several hundred dollars. The value all depends on which bank issued the notes. These 1929 $20 bills will say National Bank somewhere in the title on the left hand side of the note.
In worn condition, $15 or so. In better shape it might retail for up to $35.
Probably around $125
Please post a new question with the bill's denomination.
no
If it has a brown seal, $30 to $200 depending on condition
Probably $50 unless it is in special condition.
All 1929 US Federal Reserve notes have brown seals rather than red. They were issued as a now-unusual form of paper money called National Currency. Please see the question "What is the value of a 1929 US 20 dollar Federal Reserve Note?" for more information.
10 dollars
$140 - $160 folded $300 - $500 unfolded
Assuming it has a brown seal and is labelled "National Currency", your bill is worth $25 to $35 retail.
$130.-$175. depending on how worn it is.
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?"