Hey, that seems like a boolean logic puzzle. Here's a Python snippet to evaluate each question:
is_sunny = True
have_umbrella = False
need_umbrella = not is_sunny # if not sunny, you need one
print("1:", not is_sunny) # False
print("2:", not have_umbrella) # True
print("3:", is_sunny and not need_umbrella) # True
print("4:", is_sunny or have_umbrella) # True
If the requirements differ, let me know!