Misc: Whose address is 221-B Baker St?

Questions

If you are sinisitromanual, you are?

What is the name of the oldest derby race in North America?

Which pleated instrument did Friedrich Buschman invent in 1822?

Even though she was a ‘Canadian’ who became known as ‘America’s Sweetheart’ in the film industry?

Who was Frances Octavia Smith better known as?