Answer:
A horrid monster hides from the day, with many legs and many eyes. With silver chains it catches prey. And eats it all before it dies. Yet in every cottage does it stay. And every castle beneath the sky.
What do you have when you're sitting down that you don't have when you're standing up?
If you have it, you want to share it. If you share it, you don't have it.
When the day after tomorrow is yesterday, today will be as far from Wednesday as today was from Wednesday when the day before yesterday was tomorrow. What is the day after this day?
What has a single eye but cannot see?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?