No. That's an urban legend.
According to the US Bureau of Engraving and Printing, neither of these items are an intentional part of the design. They're artifacts of the printing process. The design is created by a mechanical engraving machine that produces intricate patterns called engine turnings. The repeating designs by coincidence do appear to make owl- and spider-like images but it's absolutely not intentional.
1 dollar bills
It would be 12 dollars if only have 12 1 dollar US bills
No US $1 bills are dated 1990.
There are approximately 28 US Dollar notes in 1 Ounce.
Please check your bills again and post a new, separate question. No US $1 bills were dated 1987.
US bills weigh 1 gram. There are approximately 453.59 g in a US pound. So either the answer is $453.
No they do not, nor does the US $1 bill.
Washington's portrait has been on all US $1 bills issued since the early 20th century.
idk where you got that information... a buddy of mine has 1925 1 dollar bills. I think you got some wrong information or these 1925 dollar bills my buddy has are some kinda rare dollar bill but Im pretty sure they do have 1925 dollar bills
The U.S. did not print any $1 bills with that date. In fact, NO U.S. bills have that date.
All current US bills have a mass of about 1 gram, regardless of denomination.
No. The US has never printed a 1 million dollar bill, and no US bills of any denomination are dated 1940.