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Sami Rizk

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last 3 solved tasks
What number goes into the empty square?
MATH PUZZLE: Can you replace the question mark with a number?
MATH PUZZLE: Can you replace the question mark with a number?

FDA Aspartame table-top approval

In 1981, aspartame artificial sweetener was approved for tabletop use by the U.S. Food and Drug Administration. Its permitted uses included in candy, tablets, breakfast cereals, instant coffee and tea, gelatines, puddings, fillings, dairy-product toppings and as a flavour enhancer for chewing gum, among others. It was first approved on 26 Jul 1974, but objections caused a stay on 5 Dec 1975, and years of scrutiny followed. Years earlier, in Dec 1965, while working on an ulcer drug, James M. Schlatterhad made the discovery that a mixture of two amino acids, aspartic acid and phenylalamine, had a sweet taste. By weight it was about 200 times sweeter than sugar, with very few calories. G.D. Seale marketed it as NutraSweet, a low-calorie artificial sweetener without the bitter aftertaste of saccharin.«

Two guys are driving down 5th...

Two guys are driving down 5th Avenue in Manhattan when they come up to a red light. The guy driving slams the gas pedal and they go zooming past the red light. His friend looks at him and says, "Hey, you just went through a red light." The guy driving says, "Don't worry about it. My brother does it all the time." So they keep driving and they come to a second red light. The guy driving slams on the gas pedal and zooms past another red light. His friend is pretty mad, looks at him and says, "Hey man, you just went through another red light. What the heck are you doing?" The guy driving tells his friend, "Don't worry about it. My brother does this all the time." They come to a third red light and the guy driving slams on the gas, zooming past the red light. His friend starts screaming at him, "What the heck? You're going to get us killed! Pull over and let me out." The guy driving screams back at him, "I'm telling you: don't worry about it. My brother, he does it all the time." So they keep driving and they come to a green light. The guy driving slams on the brakes. His friend looks at him and says, "Are you out of your mind? What the heck is wrong with you? You go flying past three red lights, almost getting us killed, and then you slam on the brakes when you have a green light?" The guy driving looks at his friend and says, "I had to stop; my brother might have been coming."
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