[::-1] reverses the list

course1, course2, course3, course4 = ("Java", "C", "PHP", "Python") So, the values will unpack in the same order. Hence, course4 = "Python"

-6 means empty space between Hello and World. and start is by default 0 so it prints - ('H', 'e', 'l', 'l', 'o')

Execute this to understand - var = 0 for i in range(3): print("i is:",i) for j in range(-2, -7, -2): print("j is:",j) var += 1 print("Inner var is:",var) print("Final var is:",var)

f1() is called and prints - f2 f2() is called and prints - f3 f3() is called and prints - f1

markss overrides the default value of marks2 with new value as 50 48+50 = 98

markss overrides the default value of marks2 with new value as 50 48+50 = 98

exp() has 2 default arguments. exp(4) calls exp() function as pow is overriden with 4 and num is 2 already. pow**num = 4**2 = 16

The exponentiation (**) operator has higher priority than the floor division(//) operator. Hence, 1//3 is 0

"None" is not an empty string so if it is True. Hence, the code is like - if True: print("Good morning") else: print("Good Evening")