What word do these all have in common? Music, prisons, and soap?

Escape artist Harry Houdini died of what causes?

If someone suffers from "myopia", what can they not do well?

The words nadir and zenith: do they have the same or opposite meaning?

Find a common nine letter word with one syllable.

When visiting an ancient city in Greece or Egypt, if you visited a necropolis, what did you visit?

What is the national motto of the United States?