Hi Ivo, here are the ones I'm confident enough to answer.
Cheers, Dominic
2. Chisholm (?)
3. Richard Starkey A.K.A. Ringo Starr
5. Bollywood
6. Chester
7. Keith Moon
9. Bruce Forsyth
11. Southampton
12. 1485
14. Star of David (although....the concept of "Northern Irish flag" is a bit problematic, if you consider that the only official flag of Northern Ireland since 1974 has been the Union Flag...but I guess your meaning is clear...)
15. Aquae Sulis
16. Coventry ( also, St George's Catholic Cathedral in Southwark,...possibly others as well...?)
17. Robert Stephenson
18. Cornwall
19. Walton-on-the-Naze (an Essex special, that. Was Herne Bay before a storm cut it in two, I think in the late 1970s...)
20. Margaret Thatcher
21. Preston North End ?
22. 26?
25. Scotland? (not sure where exactly though)
30. Cricket?
31. 1
32. Bank
35. 1997
40. Gloucester, Chichester, Chelmsford, and loads of others