geography: In which english county is Helvellyn?

Questions

What did Brahms compose for the University of Breslau after they gave him an honorary PhD?

Who formulated the laws which first explained the movements of the planets properly?

What does the sign BYO, seen outside some Australian eating places, mean?

Which fungal plant disease particularly affects brassicas?

At the 1991 World championships in Tokyo, which British hurdler ran the last leg of the 4x400 relay to win gold for Britain?