Which word does the below Plexor means ?

I know a nine-letter word having only one vowel.
Do you ?

What is harder to catch the faster you run?

Different lights make me strange by changing me into different sizes. What am I?

Do you know who was buried in John's tomb?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

An ant is travelling on a 1-meter-long rope at 1 cm/second but also the entire rope is being stretched by an extra 1 meter/second. Is it possible for the ant to reach at the end of the rope?