Mastermind or Master Mind is a code-breaking game for two players. The modern game with pegs was invented in 1970 by Mordecai Meirowitz, an Israeli postmaster and telecommunications expert. It resembles an earlier pencil and paper game called Bulls and Cows that may date back a century or more.
Mastermind does not resemble the game Bulls and Cows.
A: No

A few growers place charcoal in the bottom of containers to absorb excess salts and maintain sweet soil, if plants are grown more than a few months.
The charcoal is heavy
A: It's impossible to say

Park Bo-gum (; born June 16, 1993) is a South Korean actor. He gained recognition for his diverse range of roles in film and television, notably, a psychopathic lawyer in "Hello Monster" (2015), a genius Go player in "Reply 1988" (20152016), and a Joseon Crown Prince in "Love in the Moonlight" (2016).
Bo-gum has had roles in film, television and roles in musicals.
A:
It's impossible to say