Misc: the scoring in olympic ski jumping is determined by form and??

Questions

Particularly fond of dahlias and chrysanthemums, which garden insect has the scientific name forficula auricularia?

Which garden pest, which can cause great damage to lawns, is the grub of the crane fly?

Which railway tunnel, 20 kilometres long, joining Isselle in Italy with Brig in Switzerland, is cut under Mount Leone in the Alps?

When driving from Innsbruck in Austria to Bolzano in Italy, you cross the 'Bridge of Europe' as you climb which Alpine pass?

American artist, Grant Wood, depicts his dentist, B.H. McKeeby, and his sister Nan as a farmer-preacher and daughter in which 1930 painting?