Chuck Norris jokes and blonde jokes. Chuck Norris once had a bet with superman. The loser had to wear underwear outside his clothes. Chuck Norris threw a grenade and killed 40 people...then it exploded. There's a lot more of them just look it up.
One good joke is, "A man speaks anxiously into the handset, "My wife is pregnant, and the contractions are only 2 minutes apart!" The doctor then queries, "Is this her first child?" The man shouts, "No, you idiot!", "This is her husband!" You can get more jokes from various sites like smilezilla, pun gents, the laughspot and daily jokes.