Pub quiz

[juliely]

1. If 35g=9, 100g=12, 400g=15 and 750g=17, what does 4500g equal?
2. Which letters are excluded from the final three initials of the reg plate of all vehicles newly-registered in Great Britain in 2005?
3. The first was used in 1890 and appeared in 2004. The second was first used in 1826 and appeared in 2005. Where did they appear?
Help needed please.

[MIKE O]

You need to check but I think it is HRH

[Killerschick]

2) i, o and q.

Again I'd say you need to check but I think it's because they can be mistaken for numbers.

[Killerschick]

I'm not at all sure about those three now I think about it but I think that's the reason for the ones that aren't used.