I dont know where my local variable has gone

[Windspar]

1. Your main loop is over refactor.

import pygame

def main():
    # Basic pygame setup
    pygame.display.caption("Example")
    surface = pygame.display.set_mode((400, 400))
    clock = pygame.time.Clock()
    rect = surface.get_rect()
    delta = 0
    fps = 60

    # Variables
    background = pygame.Color("black")

    # Main loop
    running = True
    while running:
        # Event loop
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                running = False

        # Draw
        surface.fill(background)

        # Render main surface to screen
        pygame.display.update()

        # Idle/Sleep
        delta = clock.tick(fps)

main()

2. pygame has over 100 builtin colors name.

import pygame

rainbow = [
    pygame.Color('red'),
    pygame.Color('darkgreen'),
    pygame.Color('gold'),
    pygame.Color('pink'),
    pygame.Color('purple'),
    pygame.Color('limegreen'),
    pygame.Color('lightblue'),
    pygame.Color('yellow'),
    pygame.Color('white'),
    pygame.Color('blue'),
    pygame.Color('orange')
]

for color in rainbow:
    print(color)

3. Your code need more containers. list, tuples, dicts, or classes.

4. Try to create one function for creating question. You can use eval to get answer from text.

So try rewrite program.