| 20918 | If taxi fares were $1.00 for the first 1/5 mile and $0.40… | Medium | |
| 20929 | Six computers, each working at the same constant rate, together can process… | Medium | |
| 20960 | For every order, a certain mail-order company charges a shipping fee of… | Medium | |
| 20961 | Which is the middle even number between 9 and 23? | Medium | |
| 20975 | 8, 24, 12, 36, 18, 54, (....) | Medium | |
| 21001 | I | Medium | |
| 21005 | Find the odd man out 4, 8, 12, 16, 20, 24, 27… | Medium | |
| 21020 | 4, 2, -4, -8, 32, 26, -156,? | Medium | |
| 21039 | If 2994 ÷ 14.5 = 179, then 29.94 ÷ 1.45 =? | Medium | |
| 21040 | Evaluate | Medium | |
| 21061 | A Cuban cigar would cost 1 dollar less than 1.5 times a… | Medium | |
| 21062 | +1789+9011-7819=90510 | Medium | |
| 21070 | A father said to his son, "I was as old as you… | Medium | |
| 21076 | Every year an amount increases by 1/8th of itself | Medium | |
| 21081 | The no | Medium | |
| 21083 | A is twice as good a workman as B and they took… | Medium | |
| 21089 | If taxi fares were $1.00 for the first 1/5 mile and $0.30… | Medium | |
| 21098 | Annika hikes at a constant rate of 12 minutes per kilometer | Medium | |
| 21105 | A cistern has a leak which would empty the cistern in 20… | Medium | |
| 21110 | 6x − 18 = 6y 5y + 5x = 15 Which of… | Medium | |
| 21129 | A father said his son, " I was as old as… | Medium | |
| 21145 | A man has Rs | Medium | |
| 21152 | The number 110 can be written as the sum of the squares… | Medium | |
| 21159 | The distance between two planets is 4 × 10^6 light years | Medium | |
| 21168 | An accurate clock shows 8 o’clock in the morning | Medium | |
| 21169 | Which of the following could be the value of x, if |3x… | Medium | |
| 21173 | The sum of three consecutive even numbers is 93 | Medium | |
| 21174 | A boy has 9 trousers and 15 shirts | Medium | |
| 21177 | The circumferences of two circles are 264 meters and 352 meters | Medium | |
| 21178 | In a certain province in France there are 13 cities | Medium | |
| 21195 | In an intercollegiate competition that lasted for 3 days, 115 students took… | Medium | |
| 21200 | Ayesha's father was 38 years of age when she was born while… | Medium | |
| 21208 | Of the 100 employees at company X, 80 are full-time, and 100… | Medium | |
| 21213 | Three times the first of three consecutive odd integers is 4 more… | Medium | |
| 21220 | In traveling from a dormitory to a certain city, a student went… | Medium | |
| 21221 | The population of a bacteria colony doubles every day | Medium | |
| 21224 | A certain company charges $25 per package to ship packages weighing less… | Medium | |
| 21252 | Insert the missing number | Medium | |
| 21253 | If x=kc and y=kt,then y-2x =? | Medium | |
| 21288 | If a and b are the two values of t that satisfy… | Medium | |
| 21296 | A man is 29 years older than his son | Medium | |
| 21301 | In a kilometer race, A beats B by 50 meters or 10… | Medium | |
| 21307 | x = y - (5/y), where x and y are both >… | Medium | |
| 21308 | Which expression is the greatest | Medium | |
| 21321 | If 6!/3^x is an integer, what is the greatest possible value of… | Medium | |
| 21322 | A certain university will select 1 of 5 candidates eligible to fill… | Medium | |
| 21323 | A truck owner will refuel his vehicle at a rate of 2… | Medium | |
| 21335 | Two cyclist start from the same places in opposite directions | Medium | |
| 21345 | The ages of two persons differ by 32 years | Medium | |
| 21363 | A man has Rs | Medium | |