Answer:
What happens once in June twice in August and never in May?
Why are there no living cats on Mars?
Every dawn begins with me. At dusk I'll be the first you see and daybreak couldn't come without. What midday centers all about. Daises grow from me I'm told. And when I come I end all code but in the sun I won't be found. Yet still each day I'll be around.
What can travel around the world while staying in a corner?
I am free the first time and second time but the third time is going to cost you money.
I start with T end with T and within me is T.