How many evolutionists does it take to change a light bulb?
Only one, but it takes millions of years.
Why did the dinosaur cross the road?
Because chickens didn't exist yet.
What's the difference between government bonds and men?
How many Marxists does it take to screw in a light bulb?
1) The light bulb contains the seeds of its own revolution.
2) The light bulb cannot be changed — it has to be smashed.