Questions

The phrase ‘between the cup and lip’ needs to be replaced with ‘between the cup and the lip’. It means a situation where things did not happen at the last minute the way they were expected to due to unforeseen reasons. Thus, the correct formation would be, ‘There is many a slip between the cup and the lip’.

A clear cloudless day-time sky is blue because molecules in the air dissipate blue light from the sun more than they dissipate red light. When we look towards the sun at sunset, we see red and orange hues on the grounds because the blue light has been scattered out and away from the line of sight.