Reasoning

    Analogy
    Dubious : Certain (analogy)
    The words in each pair are antonyms of each other.
    Analogy
    Air : Atmosphere :: Water : ? (analogy)
    Atmosphere is the biggest unit which contains Air similarly Ocean is the biggest unit which contains Water.
    Odd Man Out
    Find the odd man out from: 21 : 24, 28 : 32, 54 : 62 & 70 : 80
    In all other pairs, the two numbers are consecutive multiples of the same number.
    Odd Man Out
    Find the odd man out from: Berene, Bristol, Zurich & Geneva
    Except Berene, all others are cities, So, option (A) is odd man out.
    Odd Man Out
    Find the odd man out from: 17, 27, 29, 37 & 59
    Each of the numbers except 27, is a prime number.
    Analogy
    UMBRAGE : OFFENSE (analogy)
    Umbrage and offense are synonyms; elation and jubilance are synonyms.
    Odd Man Out
    Find the odd man out from: Broad : Wide, Light : Heavy, Tiny : Small & Big : Large
    The words in all other pairs are synonyms.
    Analogy
    COBBLER : SHOE (analogy)
    A cobbler makes and repairs shoes; a contractor builds and repairs buildings.
    Odd Man Out
    Find the odd man out from: Rhea, Trout, Lamprey & Salmon
    All except Rhea are kinds of fishes.
    Analogy
    Mother : Daughter :: Father : ? (analogy)
    Father is the masculine of Mother in same way Son is masculine of Daughter.