Answer:
I'm a precious stone in a pack of cards. What am I?
I spend the day at the window go to the table for meals and hide at night.
What is seen in the middle of March and April that cannot be seen at the beginning or end of either month?
Things here are usually tagged with red stickers.
I am not very commonly found! Only in some rainforest! I have an odd number of toes! I'm very lazy and hang upside down! What am I?
No matter how little or how much you use me, you change me every month.