When planting vegetables, are there certain vegetables that should not be planted next to one another?
This article mentions what should and should not be planted near each other and covers just about everything I think you could plant: https://www.gardeningknowhow.com/edible/vegetables/vgen/companion-vegetable-garden.htm
What vegetable do I plant with each others and in what rows (like an layout)?
These articles should help you with that: https://www.gardeningknowhow.com/edible/vegetables/vgen/companion-vegetable-garden.htm, https://www.gardeningknowhow.com/edible/vegetables/vgen/the-layout-of-your-vegetable-garden.htm
I just planted 3 hibiscus plants in one of my front flower beds. I also bought a squash, zucchini, cucumber, and tomato plants that I was planning on putting into tires in my backyard. After doing further research, I'm not sure I want to use the tires. Can I put at least 2 of my veggies in the front flower bed with the hibiscus plants? What are the spacing requirements?
Depending on what you decide to put there, like tomatoes for instance, you should try to space them at least 24 inches to provide each plant with ample sunshine and good air circulation.
I want to know if I can plant strawberries, borage, and caraway together? If so, what is the best process to start and maintain this garden? I have a 10x4 area that faces the west by my apartment and it's next to a concrete wall on one long side.
Yes, you can grow them together. Borage and strawberries work especially well together, as the blooms of borage help bring pollinators to the area. I would place the tallest plants (borage) at the back with the caraway next and then the strawberries. Have you considered a raised bed? This often works well in smaller areas. Here are some article that should help with growing these plants: https://www.gardeningknowhow.com/edible/fruits/strawberry/growing-strawberry-plants.htm, https://www.gardeningknowhow.com/edible/herbs/borage/borage-herb.htm, https://www.gardeningknowhow.com/edible/herbs/caraway/caraway-growing.htm
Is there a companion veggie for horseradish?
Horseradish is said to grow well with potatoes, keeping potato bugs away. For additional companion planting ideas, try this article: https://www.gardeningknowhow.com/edible/vegetables/vgen/companion-vegetable-garden.htm
I would like to plant companion plants that helps control pests.
This article will help you with that:
https://www.gardeningknowhow.com/edible/vegetables/vgen/companion-vegetable-garden.htm
This is my first time to do companion gardening, and only my third year to actually have a garden. I have my corn spaced at 24 inches and, if possible, can I plant beans and cucumbers in between them or plant them the row in front of them?
Yes, you can plant these things inbetween the corn, and is a great space saving thing to do. When interplanting, you can ignore spacing guides as long as you pay attention to the height of the plants you are mixing.
Spacing guides are largely there to make sure that plants of similar size do not interfere with each others sunlight and, less importantly, root systems. When you interplant plants of differing size, they don't interfere with each others' sunlight and their root systems will be fine as long as you provide enough water and nutrients to support all the plants in the space.