There is no British One Pound coin designed with the Queen's head on both sides.
It is most likely a trick coin available from magic shops.
In the extremely unlikely event that a "double header" coin was minted, one side would have a raised image as usual, the other side would have the image indented or incuse.
£20 Note
yes
There are approximately 0.4536 kilograms in one pound.
Pam West or Colin Narbeth (both UK-based) are the well known note dealers. Google them to get details.
Both LaGuardia and JFK Airports are in Queens.
They both weigh the same as both of them originally weigh-in at a pound
If that occurs, then both sides lose.If that occurs, then both sides lose.If that occurs, then both sides lose.If that occurs, then both sides lose.If that occurs, then both sides lose.If that occurs, then both sides lose.
both
yes
there is no evidence that proves or disproves the existence of god, so asserting that a god or gods exist or don't exist is a waste of time due to a lack of evidence for both sides.
The weigh the same. A pound is a pound is a pound no matter what the object is.
They both weigh the same, a pound. The weight is determined by the measurement, not the material.