Reasoning

    Analogy
    Humanitarian : Altruistic (analogy)
    First ought to be second by nature.
    Analogy
    Thermometer : Temperature (analogy)
    As temperature is measured from a thermometer in the same way heart rate is measured with cardiograph.
    Odd Man Out
    Find the odd man out from: Tibia, Cortex, Cranium & Cerebellum
    Except Tibia, all others are part of the brain.
    Odd Man Out
    Find the odd man out from: 16-18, 56-63, 96-108 & 86-99
    All the rest are in the ratio of 8:9.
    Odd Man Out
    Find the odd man out from: SUNDAY : NSVYDB, MOTHER : TMPRHD, SIMPLE : MSJEPM, MOSTLY : SMPYTM & SIMPLE : MSJEPM
    In all other pairs, the first, third, fourth and sixth letters of the first element form the second, first, fifth and fourth letters of the second element respectively, while the second and fifth letters of the first element move one step forward each to give the third and sixth letters of the second elements respectively.
    Analogy
    Butter : Milk :: Book : ? (analogy)
    Second is used to prepare the first.
    Analogy
    Tamilian, Gujarati, Punjabi (analogy)
    All these words represent the inhabitants of India.
    Analogy
    Banana is related to Fruit in same way as Chrysanthemum is related to : (analogy)
    Banana is Fruit in same way, Chrysanthemum is Flower.
    Analogy
    Energy : Joule (analogy)
    Joule is the unit of measuring energy. Similarly, Ohm is the unit of measuring resistance.So, the answer is (d).
    Analogy
    Hero : Accolade (analogy)
    First is worthy of the second for his actions.