FIA

The number series follows the pattern where each term is obtained by multiplying the previous term by 3 and then subtracting 3. Specifically: 3 × 3 - 3 = 6, 6 × 3 - 3 = 15, 15 × 3 - 3 = 42, 42 × 3 - 3 = 123, and 123 × 3 - 3 = 366. Therefore, the missing number in the series is 42, which corresponds to option C.

Italy is famously recognized on the world map for its distinctive boot-like shape, often described as a long shoe. None of the other options have a similar shape or are commonly described this way.

Canada is one of the world's largest producers of uranium, historically ranking among the top producers globally. France and South Africa produce uranium but not at the scale of Canada. 'None of these' is incorrect since Canada is listed as an option.

The sentence is a third conditional, which refers to a hypothetical past situation and its possible past result. The correct form is 'If they had bought new batteries, their torch would have worked better.' Option C uses the past perfect tense 'had bought,' which is appropriate here.

The correct preposition to use with 'impression' in this context is 'under.' The phrase 'under the impression' means to believe something that is not true, which fits the sentence perfectly.

The headquarters of the International Red Cross and Red Crescent Movement is located in Geneva, Switzerland. This is the recognized global center for the organization.

Nicolas Sarkozy served as the President of France from 2007 to 2012, making option C the correct answer. He was not the German Chancellor or Canadian President, and thus options A and B are incorrect.

Iceland is known for having no standing army or armed forces. It relies on a coast guard and has defense agreements with other countries, unlike Niger, Nigeria, and Latvia, which all maintain armed forces.

The word 'adamant' means refusing to be persuaded or to change one's mind, which is synonymous with 'obstinate'. The other options do not convey the same meaning.

The permanent secretariat of SAARC (South Asian Association for Regional Cooperation) is located in Kathmandu, Nepal. This is the official headquarters where the organization's administrative functions are carried out.