Sample 1, Logical Reasoning
Find the missing number in the following number series: 4, 8, 12, 16, ?, 24
- A. 18
- B. 20
- C. 22
- D. 25
ISSO Class 6 mock test (set 2) for 2026: 55 social studies questions in 60 minutes, following the SOF International Social Studies Olympiad pattern. Timed practice with instant score, detailed solutions, rank and percentile.
| Section | Questions |
|---|---|
| Logical Reasoning | 15 |
| History | 10 |
| Geography | 10 |
| Civics | 5 |
| Economics | 5 |
| Achievers Section | 10 |
| Total (60 minutes) | 55 |
A preview of 3 of the 55 questions. Answers are revealed when you take the exam.
Sample 1, Logical Reasoning
Find the missing number in the following number series: 4, 8, 12, 16, ?, 24
Sample 2, History
In ancient Mesolithic communities, which animal is widely believed to have been among the very first to be domesticated by humans?
Sample 3, Geography
Which of the following lines of latitude passes exactly through the middle of India?
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55 questions in 60 minutes, timed on our server like the real olympiad.
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