When I put my acorn squash seedlings in the garden, should I treat them like my tomato plants and bury them deeper than they have been in the pot?
For this initial planting, plant them at the same depth, simply because they don't really like the extra stress of being transplanted. But, once they are established, you can bury parts of the stem to get them to root as well. This is a common technique done to provide insurance along the vine in case the base is attacked by pests or damaged.
I planted seeds from an acorn squash that I used in cooking. Now they are really growing. They look too close together. Should I thin them out and how?
This article should help with that: https://www.gardeningknowhow.com/garden-how-to/seeds/thinning-seedlings.htm
The inside color of my squash is a light yellow. Isn't it suppose to be orange? The outside is dull with a yellow bottom. Am I too early ? Let me know, I still have 20 more on my vines.
This article should shed some light on your dilemma: https://www.gardeningknowhow.com/edible/vegetables/squash/when-to-harvest-squash-best-time-to-pick-winter-or-summer-squash.htm
How to treat or remove whitish-grey mold or fungus?
This might well be downy mildew: https://www.gardeningknowhow.com/plant-problems/disease/downy-mildew.htm
My brother stored his squash in the basement, where they turned orange. They smell alright and look alright when you cut them, but are they safe to eat? He is very sick and wants me to cook and puree' them to freeze.
Perfectly safe. This is just their full ripe color. They normally are not sold this way, but they are safe to eat.
We planted acorn squash this spring and it's getting near to the point of picking. How can we store it to have all winter?
These articles should help: https://www.gardeningknowhow.com/edible/vegetables/squash/how-and-when-to-pick-acorn-squash.htm
https://www.gardeningknowhow.com/edible/vegetables/squash/storing-winter-squash.htm
How do you store acorn squash if you planted it as a summer crop?
These articles should help: https://www.gardeningknowhow.com/edible/vegetables/squash/how-and-when-to-pick-acorn-squash.htm
https://www.gardeningknowhow.com/edible/vegetables/squash/storing-winter-squash.htm