Misc: What was the name of the Bjork-fronted 80's band??

Questions

Which group had a number one hit with `Tiger Feet`?

In which century was Sir Isaac Newton born ?

Which of these is not a prime number-5,7,9,11?

Which Alastair is a member of the Channel 4 horse racing team?

The larva of which insect is known as a leatherjacket?