506 views
A product costs $100 and is sold at a 20% profit. What is the selling price?
7 months ago
Questions & Answers
422 views
You have a 1-liter and a 2-liter cup and unlimited water. How to get exactly 1.5 liters?
7 months ago
262 views
Two trains start 100 km apart, speeds 40 and 60 km/h toward each other. When they meet, how far has a fly flying at 80 k...
7 months ago
519 views
A rectangle measures 6 by 10; how many squares of side 2 fit without overlap?
7 months ago
359 views
You cut a cake into 8 equal pieces with only 3 cuts. How?
7 months ago
573 views
A digital clock displays time using three 7-segment digits (H:MM from 1:00–9:59). How many segments are lit at 1:11?
7 months ago
350 views
You have 9 balls; one is heavier. Minimum balance weighings to find it?
7 months ago
484 views
A man dies on his 24th birthday from old age. How?
7 months ago
320 views
You meet two people from a “truth-tellers/liars” island. One says, “We are both liars.” What are they?
7 months ago
265 views
A snail climbs 3 ft by day, slips 2 ft by night up a 10 ft well. Days to escape?
7 months ago
270 views
You have 12 coins; one is counterfeit (heavier or lighter). With 3 weighings, can you find it and know if it’s heavier o...
7 months ago
395 views
A cube is painted on all sides and cut into 27 small cubes. How many have exactly one face painted?
7 months ago
498 views
Three people check into a $30 room. Clerk later returns $5; bellboy keeps $2 and gives $1 each back. They paid $27; plus...
7 months ago
380 views
You have two ropes that each burn in 1 hour but not at a uniform rate. How to measure 45 minutes?
7 months ago
545 views
You have 10 bags of coins; one bag has counterfeit coins weighing 9 g each; real coins weigh 10 g. With one weighing, ho...
7 months ago
546 views
A merchant can place 8 large boxes or 10 small boxes in a carton. Each shipment is one full carton. He sent 96 boxes tot...
7 months ago
288 views
How many times do clock hands overlap in 12 hours?
7 months ago
458 views
You’re running a race and pass the person in second place. What place are you now in?
7 months ago
460 views
The day before two days after the day before tomorrow is Saturday. What day is it today?
7 months ago
397 views
A doctor gives you three pills and says to take one every 30 minutes. How long do they last?
7 months ago