Words

What does the word "do" mean? If somebody says, (how do you do)? What does this mean?
How can one word be spelled 3 ways? There--Their--They're or two--to--too
How can the same word have different meanings ? Bear(animal)-(carry)-(give birth)-(produce)
Why do words have different sounds than how they are spelled? shoe-true-flew-toe-blow-sew
Why isn't school spelled with a "k" skool
Why does ph sound like "f"
How in the world can Colonel be pronounced Kernel
Heres one for you. Who decided how to spell "pneumonia"

I am no genius but I am pretty sure I could have spelled words in a similar way & kept one word to one meaning. Maybe the geniuses should have asked normal people to help, when they began naming things & then we could understand each other a little better.