| 81091 | A train passes a man standing on the platform | Medium | |
| 81095 | 15 beavers, working together in a constant pace, can build a dam… | Medium | |
| 81145 | A completes a work in 8 days and B complete the same… | Medium | |
| 81147 | A man walks at a rate of 10 mph | Medium | |
| 81153 | A man swims downstream 30 km and upstream 12 km taking 3… | Medium | |
| 81162 | A can do a piece of work in 18 days and B… | Medium | |
| 81175 | A train running at the speed of 40 km/hr crosses a pole… | Medium | |
| 81184 | A can do a piece of work in 15 days and B… | Medium | |
| 81188 | A rower can row 7 km/h in still water | Medium | |
| 81209 | Ravi can do a piece of work in 25 days while Prakash… | Medium | |
| 81210 | In what time will a train 400 m long cross an electric… | Medium | |
| 81214 | A work as fast as B | Medium | |
| 81254 | 9 | Medium | |
| 81292 | A train 150 m long running at 72 kmph crosses a platform… | Medium | |
| 81300 | Two passenger trains start at the same hour in the day from… | Medium | |
| 81301 | A 100 meter long train crosses a man standing on the platform… | Medium | |
| 81314 | The length of the bridge, which a train 120 metres long and… | Medium | |
| 81345 | A pipe can fill a cistern in 20 minutes whereas the cistern… | Medium | |
| 81346 | A 150 metres long train running at the speed of 120 kmph… | Medium | |
| 81362 | A can do a piece of work 60 days | Medium | |
| 81364 | Amit and Ananthu can do a work in 15 days and 30… | Medium | |
| 81373 | A can do a piece of work in 4 days | Medium | |
| 81401 | A train 220 m long is running with a speed of 60… | Medium | |
| 81403 | Two trains 110 m and 160 m long run at the speed… | Medium | |
| 81430 | A train 100m long passes a man, running at 5 km/hr in… | Medium | |
| 81435 | A man rows his boat 85 km downstream and 25 km upstream… | Medium | |
| 81440 | A boat can move upstream at 50 kmph and downstream at 20… | Medium | |
| 81468 | A wheel of a car of radius 21 cms is rotating at… | Medium | |
| 81485 | Jack and Christina are standing 240 feet apart on a level surface | Medium | |
| 81497 | Two trains start at same time from two stations and proceed towards… | Medium | |
| 81500 | Two pipes A and B can fill a tank in 20 and… | Medium | |
| 81508 | A boat running downstream covers a distance of 16 km in 4… | Medium | |
| 81535 | A man can row at 6 kmph in still water | Medium | |
| 81541 | Two trains of length 100 m and 200 m are running towards… | Medium | |
| 81543 | A train passes a platform in 32 seconds | Medium | |
| 81553 | A train 140 m long, running with a speed of 63 km/hr… | Medium | |
| 81574 | A certain number of workers can do a work in 35 days | Medium | |
| 81577 | Two pipes can fill a tank in 20 and 24 minutes respectively… | Medium | |
| 81579 | A train moves fast a telegraph post and a bridge 250 m… | Medium | |
| 81583 | A train 240 m long is running at a speed of 60… | Medium | |
| 81589 | Car A is 16 miles behind car B, which is traveling in… | Medium | |
| 81599 | A can do a job in 18 days and B can do… | Medium | |
| 81601 | A train 125 m long passes a man, running at 5 km/hr… | Medium | |
| 81607 | The length of a bridge in meters, which a train 120-meters long… | Medium | |
| 81638 | One hour before John started walking from P to Q, a distance… | Medium | |
| 81688 | It takes printer A 4 more minutes more than printer B to… | Medium | |
| 81707 | In one hour a boat goes 11 km long the stream and… | Medium | |
| 81712 | Pipe A can fill a tank in 3 hours | Medium | |
| 81721 | A train 560 m long, running with a speed of 63 km/hr… | Medium | |
| 81728 | A car finishes a journey in ten hours at the speed of… | Medium | |