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Joe Smith

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last 3 solved tasks
Remove 7 letters from this sequence (DIESTRUCSKTALIONOO) to reveal a familiar English word.
MATH PUZZLE: Can you replace the question mark with a number?
I am both a killer and a savior, it depends on those who wield me. I will bring you from deep water to the shallows, or maybe I could be the one who will hang you in the gallows. What am I?

Edison patent

In 1876, Thomas A. Edison was issued three patents for "Duplex Telegraphs" (U.S. No. 178,221; -3). These were for "an Improvement in Duplex Telegraphs" which enable a transmitted signal be sent on the same wire that could be receiving a signal. In patent 178,222, Edison describes "A balanced battery is used for transmitting when the balance is disturbed. An electromagnet is used, through which both the received and transmitted pulsations pass, and the connections are made so that the action of the current sent is balanced, while that coming from the distant station is operative, to work a balanced relay and local circuit or sounder."

Good Impression

An older man, not in the best physical condition, asked the trainer in the gym, "I want to impress that beautiful girl. Which machine should I use?"
The trainer replied...
"Use the ATM machine outside the gym!"
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