What is the Canadian lunar cycle?
the answer to this question is 29 days
That depends what calendar you are talking about. Both the Jewish and the Islamic (or Hijri) calendars have calendar months that coincide with the lunar cycle - that is, with the lunar month. But you are probably more familiar with the Gregorian Calendar - in this case, the months are slightly longer than the lunar months. A lunar cycle is about 29.5 days; the months in the Gregorian calendar have almost 30.5 days on average.
Quick answer: Over the course of a lunar cycle, you are observing the lunar day (exactly equal to the length of a lunar cycle of phases) unfolding on the moon's surface. [Some wrongly believe that the changing appearance of the moon has something to do with the earth's shadow on the moon; it does not. The earth's shadow is involved only during a lunar eclipse.]
How many times in one lunar cycle could there possibly be a lunar eclipse if the earth and moon were in orbits that were perfectly level?
If the moon's orbital plane coincided with the earth's orbital plane, there would still be a maximum of one lunar eclipse and one solar eclipse in each lunar cycle. The difference would be that they would occur in every lunar cycle. We would have a total eclipse every two weeks, with lunar and solar alternating. And that would just be the natural order of things. We wouldn't think any more about it than we marvel…