Daily Brain Teasers for Friday, 10 November 2017
|puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ...|
Forward I mean something pas...Forward I mean something past, backward I am now. What am I?
The first user who solved this task is Rutu Raj.
MotorcycleIn 1885, the world's first motorcycle, designed by Gottlieb Daimler, made its first significant test-run. Daimler's 17-year-old son, Paul, travelled from Cannstatt to Unterturkheim and back. Their “Reitwagen” had a wooden frame and wheels. A leather drive belt ran between the engine and large brass gears on the rear wheel. With no suspension on the wheels, the leather saddle gave a very uncomfortable ride, at a speed up to 12 km/hr. The single cylinder engine had a bore of 58mm, stroke of 100mm and a displacement of 264cc's. The engine gave 0.5hp at 700 rpm. Two very much smaller, spring-mounted outrigger wheels provided some stability. This was built as an experimental vehicle to test the new Daimler engine in a proof of concept, which was to power Daimler's first motorized carriage the following year.
When I am filled I can point...When I am filled I can point the way. When I am empty, nothing moves me. I have two skins - One without and one within. What am I?
The first user who solved this task is Fazil Hashim.
MAGIC SQUARE: Calculate A*B+CThe aim is to place the some numbers from the list (20, 21, 22, 23, 24, 25, 47, 48, 49, 85, 91, 94) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A*B+C.
The first user who solved this task is Djordje Timotijevic.
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