In what part of speech does a verb end in "ing" to operate as a noun, such as "eating breakfast" or "answering the phone" or "walking on the moon"?

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?