If we know the volumetric flow rates of the water going into the two branches, then what would be the velocity of the water coming out?

Read More »## New Brain Teaser – What is that number?

There is a number less than 3000 that when divided by 2 leaves a remainder of 1, when divided by 3 leaves a remainder of 2, when divided by 4 leaves a remainder of 3, When divided by 5 leaves a remainder of 4, when divided by 6 leaves a …

Read More »## 3 Questions for an Engineer

1. How much does a house weigh? 2. How much weight can a rural two-lane bridge hold? Click to Zoom 3. And finally, would this be covered under the home insurance or the car insurance policy?

Read More »## Brain Teaser: Fill in the Blanks

Four words with the letters SNT, in that order, have all their other letters removed. You must use the letters below to fill in the blanks. _ _ S _ N T _ _ _ S _ _ N T S _ N _ _ T S _ _ _ …

Read More »## Brain Teaser: A Sliding Ladder

A 25 ft ladder (assume it is not an extension ladder) is placed with its foot 7 ft away from a building. If the top of the ladder slips down 4 ft, how many feet will the bottom slide out? A distribution manager’s dilemma | Back – Next | Fill …

Read More »## Brain Teaser – An 8-inch model screw

An 8-inch model screw, tested in a water tunnel at a rotational speed of 22.5 revolutions per second and a velocity of flow of 12 feet per second, yields a measured thrust of 28.5 pounds, a torque of 3.45 pounds and an efficiency of 70 per cent. If the model …

Read More »## Brain Teaser – Determine the code to open the briefcase

Doug had forgotten the 5 digit code to his briefcase. However, he did remember five clues: The fifth number plus the third number equals fourteen; The fourth number is one more than the second number; The first number is one less than twice the second number; The second number plus …

Read More »## The Raffle Tickets Brain Teaser

Three girls at the school fair were each buying a raffle ticket. The only unsold tickets were numbered 4,6,9,21 and 26. After their three purchases were completed, their friend Tom noted that – The total of the three numbers was not a prime number. The total was not divisible by …

Read More »## Challenge your brain – Boys vs. Girls jigsaw puzzle

A team of 6 girls and 4 boys put together a 2200-piece jigsaw puzzle in 4 hours. The same jigsaw puzzle was put together in 8 hours by a team of two girls and five boys. Who are better at putting jigsaw puzzles together, boys or girls, and by how …

Read More »## Brain teaser – Make this equation true, 999999999999999 = 1990

Insert +, -, x or / in suitable places on the left side of = so as to make the equation true: 999999999999999 = 1990 Cross a rickety bridge in 17 minutes | Back – Next | Challenge your brain – Boys vs. Girls jigsaw puzzle

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