Misc: The horizontal part of a step?

Questions

What is the dire straits song title for 'here comes johnny singing oldies, goldies ...'?

What is the discharge of a liquid from a surface, usually pores or incisions?

What is the disease frequent in asia, africa and america, which is believed to result from eating polished rice?

What is the earth's layer just below the crust?

What is the effect of the earth's rotation on the wind called?