Misc: What German town's problem with rats was handled by the Pied Piper?

Questions

Which novelist wrote The guns of Navarone,Ice Station Zebra and Where eagles Dare?

In which state is Detroit?

Who was the first English King from the House of Lancaster?

The Isis is the upper stretch of which English river?

The Police: This song was on the cassette tape, but not the album, of _Synchronicity_.?