Brain Teasers

There are 5 ships in a port

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?

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?

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 …

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?

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

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?

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 …

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 …

Challenge your brain with this interesting brain teaser. Given a number of statement find the solution to the question asked.