What is a black act slang for?

A black act is slang for picking a lock in the dark.

What is an air dance? An air dance is an execution by hanging. Other slang terms for hanging: air jig, air polka, and air rumba.
What is a last laugh before dying? A bullet shot through a victim's heart sometimes precipitates a final laugh before death.
When did Kim Philby become a Soviet spy? Kim Philby was recruited by the Russians in the early 1930s. He entered the British Secret Service in 1939 and remained a double agent until 1962, when he escaped to the Soviet Union.…
Why is an hour divided into 60 minutes and not 10 or 100 minutes? An hour divided into 60 minutes because it is based on the sexagesimal system of notation, a system based on the number 60 that predates the decimal system. It was developed about 2400…
On what daytime TV drama did New York mayor Edward Koch once appear as himself? New York mayor Edward Koch once appeared on the daytime TV drama "All My Children" (ABC, 1970).
Who established the first literary club in America? Author Anne Hutchinson organized literary groups for women in the seventeenth century.