Expert

An instructor in chemical warfare asked soldiers in his class: "Anyone knows the formula for water?"
"Sure. That's easy," said one man.
"What is it?"
"H, I, J, K, L, M, N, O."
"What, what?" reasked the instructor.
"H to O," explained the chemistry expert.
What do you call a martial arts expert in a tree?
Bruce Leaf.
The Alcoholic Connoisseur
The Alcoholic Connoisseur At a winery, the regular taster died and the director started looking for a new one to hire. A drunkard with a ragged, dirty look came in to apply for the position. The director of the winery wondered how to send him away. He gave him a glass to drink. The drunk tried it and said, “It's a Muscat, three years old, grown on a north slope, matured in steel containers. Low grade, but acceptable.” "That's... that's correct.", said the boss, astonished. Another glass... “This is a Cabernet, eight years old, a south-western slope, oak barrels, matured at 8 degrees. Requires three more years for the finest results.” "Correct!" A third glass... "It's a Pinot Blanc Champagne, high grade and exclusive,'' the drunk said calmly. The director was blow away, but in case this was some sort of hoax, he wanted to put the man to a real test. He winked at his secretary, secretly suggesting something. She left the room and came back in with a glass of urine. The alcoholic tried it. "It's a blond, 26 years old, three months pregnant and if I don't get the job I'll name the father."
The Wasp Expert
The Wasp Expert A biology student doing his thesis on wasps is walking down the street when he passes a record store. In the window he sees a record called "wasps of the world, and the sounds they make". Intrigued, he walks into the store. He says to the shopkeeper "I'll have that wasp record in the window please. I've been listening to so many wasps, I'll probably be able to know each and every one of them." He smiles smugly as the shopkeeper feigns interest. The student pays and leaves. When he gets home he puts the record on. "Bbzzzzzzzzz" it goes, but the man is stumped, he doesn't know what type of wasp this is! He waits for the next track. "Bbbbzzzzzzzzzzzz" and again, he can't identify which species of wasp this is! It gets to the fifth track and he breaks down. He can't identify a single wasp yet he thought he was already an expert on the subject! He calls his professor round to the house to help, when he arrives he explains to him: "I thought I was an expert by now, but I can't identify a single wasp on this whole record!" He says, almost in tears. The old professor ponders for a minute as he looks at the record. "Ah, I know what the problem is!" He says. "What? what is it?!" "You've got it on the B-side!"
The Secret Cemetery Music
The Secret Cemetery Music A tourist in Vienna is going through a graveyard and all of a sudden he hears music. No one is around, so he starts searching for the source. He finally locates the origin and finds it is coming from a grave with a headstone that reads "Ludwig van Beethoven, 1770-1827". Then he realizes that the music is the Ninth Symphony, and it is being played backward! Puzzled, he leaves the graveyard and persuades a friend to return with him. By the time they arrive back at the grave, the music has changed. This time it is the Seventh Symphony, but like the previous piece, it is being played backward. Curious, the men agree to consult a music scholar. When they return with the expert, the Fifth Symphony is playing, again backward. The expert notices that the symphonies are being played in the reverse order in which they were composed, the 9th, then the 7th, then the 5th. By the next day the word has spread and a crowd has gathered around the grave. They are all listening to the Third Symphony being played backward. Just then the graveyard's caretaker ambles up to the group. Someone in the group asks him if he has an explanation for the music. "I would have thought it was obvious," the caretaker says. "He's decomposing."