Really Deep Thoughts... (or not)

While we're on the topic, this is what keeps me up at night (all the real work I do thinking I do either when in the shower or when washing dishes).

Why are plates mostly round?
Do goldfish have friends if they remember only 5 minutes of their lives at a time?Who named the seasons Spring, Summer, Autumn and Winter?
What happens to clothes nobody wants to wear when you recycle them?
Why does ice freeze white and not other colours when water is transparent? Does that mean white is the ultimate colour?
What time did Christ really die? Is it really at 3pm when Good Friday mass times usually are?
How do people know that Christ died on a Friday and rose on a Sunday? Isn't the third day technically Monday?
What does Easter mean?
Why do we never see black flowers but see black/dark brown trees and wood?
Do dogs not dream of chasing rabbits, eating pie and other naughty things when they dream?
Who decided that Saturday and Sunday were to be commonly accepted weekends? Why not Friday and Saturday in some countries as is normal, or Sunday and Monday?
Why did we end up using visual as our primary sense when our sight isn't actually really that good?