Brain Teaser – Ships
There are 5 ships in a port
Brain Teaser – A Book
A book has N pages, numbered the usual way, from 1 to N. The total number of digits in the page numbers is 1,095. How many pages does the book have?
Calculate the velocity of water coming out of a double-entry pipe
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?
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…
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…
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 _ _ _ N T
Letters to use: A, A, E, E, E, I, I, L, L, Q, S, S, U, U
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?
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…
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…
The Raffle Tickets Brain Teaser
Challenge your brain with this interesting brain teaser. Given a number of statement find the solution to the question asked.