What has no start, end, or centre?

Find the Odd One Out?
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A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days?

The following "Brain Bat" means Slow Down.
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W

Using the same logic, can you tell us what does the following Brain Bat means ?
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Seek and Puzzle: Only the Sharpest Eyes Can Spot the Hidden Star in 10 Seconds

Make a sentence consisting of three words that have the whole alphabet.

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

What does a man do only once in his lifetime, but women do once a year after they are 29?

What is both possible and impossible at the same time?

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?