Yes, we in UK use the 10p coin. It used to be known as the 2 shilling piece, a Florin. That was before the UK changed to decimal currency in 1971. All of our coins in UK have the Queens head on them.
England
Please check your coin. Queen Elizabeth II was born in 1926 and did not become Queen until 1952 after the death of her father, King George VI. The 5 Pence coin was not introduced into the currency until 1968.
Do an image search There is no "pence" coin, pence is the plural of penny, hence 5 one penny coins , or 1 five pence.
A British 20 pence piece.
All years of issue of the Eire 20 Pence coin are identical. See the link below.
In the United kingdom it would be worth 10 pence. In the USA it would be the equivalent of about 16 cents
Such a coin does not exist. Queen Elizabeth II was born in 1926 and did not become queen until 1952. The 20 Pence coin was first issued in 1982.
The worth of a 1995 Elizabeth II D C R G FD 20 pence is dependent on the condition of the coin and what others are willing to pay. Since the coin is so recent, it is probably not worth much more than 20 pence.
Queen Elizabeth 11 picture is on the back of the 20c coin.
See the link below
The inscription around the obverse of a current British Two Pence coin says - "ELIZABETH.II.D.G REG.F.D." and the year. "ELIZABETH.II.D.G REG.F.D." is abbreviated Latin for "Elizabeth II Dei Gratia Regina Fidei Defensor" meaning - Elizabeth II, by the Grace of God, Queen, Defender of the Faith. The reverse has the inscription "TWO PENCE".
It could be any 50 cent or 50 Pence coin issued since 1953 by any of the 50 plus Commonwealth countries. If the coin has no country name on it, it is most likely a British 50 Pence coin issued between 1969 and now.