Define the MAIN differences between nil and false in Ruby?
Below are the four main difference between nil and and false:-
(1)nil:-Here in ruby nil cannot be a value.
(1)false:-Here in ruby false can be treated as value.

(2)nil:-nil is not a BOOLEAN data type
(2)false:-false is a boolean data type.

(3)nil:-In ruby nil is an object of nilclass.
(3)false:-In ruby false is an object of falseclass.

(4)nil:-nil is returned where there is no predicate.
(4)false:-when there is case of predicate value of true or false is returned by a METHOD.