BRAIN TEASERS

# Find number abc

If c0ba4 + 916b3 = 162a3c find number abc. Multiple solutions may exist.
The first user who solved this task is Nasrin 24 T.
#brainteasers #math

### A little old lady is walking d...

A little old lady is walking down the street dragging two large plastic garbage bags behind her. One of the bags rips, and every once in a while a \$20 bill falls out onto the sidewalk.
Noticing this, a policeman stops her, and says, "Ma'am, There are \$20 bills falling out of your bag."
"'Oh, really? Darn!" says the little old lady. "I'd better go back, and see if I can find them. Thanks for telling me.."
"Well, now, not so fast," says the cop. "How did you get all that money?' You didn't steal it, did you?"
"Oh, no", says the little old lady. "You see, my back yard is right next to the football stadium parking lot. On game days, a lot of fans come and pee through the fence into my flower garden. So, I stand behind the fence with my hedge clippers. Each time some guy sticks his thing through the fence, I say, '\$20 or off it comes."
"Well, that seems only fair." laughs the cop. "OK? Good Luck! Oh, by the way, what's in the other bag?''
"Well, you know", says the little old lady, "not everybody pays."
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### Edison patent

In 1888, Thomas A. Edision, with co-inventor Ezra T. Gilliland were granted a patent for "Railway Signaling" (U.S. No. 384,830). The invention related to signalling systems for communicating between stations and moving trains by induction from the telegraph wires to the roofs of the cars. In such a system, transmitters were vibrators operated by keys to send signals upon the line, and receivers were telephone receivers connected to the ground. The patent was for an innovation to increase the quickness, rapidity and clearness of the vibrations. By making the transmitted vibrations as short and distinct as possible, they may be more clearly reproduced at the receiver.
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