275, 132, 462, 396, 327, 891, 121
| Question | 275, 132, 462, 396, 327, 891, 121 | |
| Type | multiple_choice | |
| Option | 327 | correct |
| Option | 275 | incorrect |
| Option | 121 | incorrect |
| Option | 396 | incorrect |
| Solution | In each number except 327, the middle digit is the sum of the other two. | |