Who is the creator of the auto cut off switch?

I am an American song writer, guitarist, and known as a pioneer of rock and roll music.

What is the first self proclaimed African American millionaire who created the first hair care products?

I am known as the "God Father of Soul"

I did the patent draftsman for incandescent light bulb

I have sold over 200 million records world wide and i am the worlds most awarded female artist of all time. i have won 6 Grammy's.

I was a ophthalmologist who invented cataracts treatment, a more effective and precise treatment in 1976

I was often referred to as " The Genius" I pioneered the genre of 'soul music' in the 1950s by combining rhythm, blues, jazz and gospels.

I have several inventions, my most famous were improving the sewing machine and gas mask who am i?

She was inducted into the Rock and Roll Hall of Fame in 1993. One of my famous songs was titled "At Last"