The blue seals indicate your bills are silver certificates. In circulated condition the consecutive serial numbers add only a small amount to their normal $8 to $10 retail value.
20 times $50 equals $1,000. Consecutive serial numbers will only add to the value if they're old bills.
not rare at all they are counterfeit broski
The value of a five dollar bill is five dollars. It's not clear what you mean by "consecutive serial numbers." If you mean that the bill's serial number looks like "12345678" or something, then a collector might be willing to pay a small premium for it as a curiosity. If you mean that you have two or more five dollar bills where the serial numbers are consecutive, they're worth five dollars each, period.
$1 each
Face value.
$20, American.
Enormous numbers of $2 bills were printed in 1976 for the Bicentennial celebration, so it's not unusual to find them with consecutive serial numbers. If they're from change, they have no extra value. Uncirculated ones might bring $3 to $4.
24 $20 bills are worth $480, even in a set with consecutive serial numbers. The only way they would be worth more is if they're older bills in good condition.
If they're modern notes, they're only worth face value. It's not uncommon to get consecutive new bills at the bank.
Face value only.
As a form of identification and tracking, as well as accountability with the US government.
Counterfeit Confederate one dollar bills can have a variety of serial numbers, as they were often produced in different batches and with varying characteristics. There isn't a specific set of serial numbers that identify all counterfeit bills, as these can be created at any time. If you suspect a bill is counterfeit, it's best to compare it with known authentic examples or consult an expert.