1. The Pleasant Life: This involves pursuing positive emotions and pleasures. It aligns with the concept of hedonic happiness, which focuses on maximizing positive experiences and minimizing negative ones.
2. The Good Life: This is characterised by engagement in activities that allow one to experience flow and a sense of purpose. It aligns with eudaimonic happiness, which focuses on meaning and self-actualisation.
3. The Meaningful Life: This involves using one's strengths to contribute to something larger than oneself. It is also a form of eudaimonic happiness and is related to feeling connected and purposeful.

In summary, the pleasant life is about feeling good, whereas the good and meaningful lives are about doing good and being good, contributing to deeper forms of happiness and well-being.

15. Differentiate between subjective well-being and psychological well-being.

Subjective well-being (SWB) is defined by the individual’s personal evaluation of their overall happiness and life satisfaction. It includes the presence of positive affect, the absence of negative affect and life satisfaction. 

Psychological well-being (PWB), is a more multidimensional construct focusing on aspects of one's life like self-acceptance, personal growth, positive relations, and a sense of purpose. SWB focuses on the emotional aspects of happiness, whereas PWB delves into the meaning, purpose and quality of life.

16. Explain Keyes’ model of well-being and highlight its implications for happiness.

Keyes' model proposes that complete mental health includes emotional, psychological and social well-being. It highlights that well-being is not simply the absence of mental illness, but the presence of positive functioning across different domains of life. It implies that true happiness requires more than just feeling good; it needs positive functioning in multiple aspects of one's life such as relationships, community engagement and self-acceptance.

17. Discuss the Panchakosha model of well-being.

The Panchakosha model from Indian philosophy describes five layers or sheaths of the human being:

1. Annamaya kosha (physical body), 
2. Pranamaya kosha (energy body), 
3. Manomaya kosha (mental body), 
4. Vijnanamaya kosha (wisdom body), and 
5. Anandamaya kosha (bliss body). 

According to this model, well-being is achieved when all these layers are in harmony. It highlights a holistic view of happiness, integrating physical, emotional, mental and spiritual aspects.

18. Elaborate on the factors affecting happiness.

Several factors influence happiness:

• Demographic factors such as age, gender, socio-economic condition, education and disability can affect happiness.
• Life events like marriage, childbirth, job loss or health issues can impact both positive and negative affect.
• Personality traits also play a role, with traits such as optimism, resilience and gratitude contributing to higher levels of happiness.
• Social relationships and the sense of belongingness are also important for happiness.
• Cultural factors can shape the understanding and experience of happiness.
• External factors including income, possessions and environment influence happiness levels.
• Internal factors such as beliefs, values, goals and intentions also contribute significantly to well-being and happiness.
• Health and physical wellbeing plays a part in overall happiness.
• Hedonic adaptation can reduce the impact of positive events over time.

19. Discuss various measures to enhance happiness and well-being.

Various measures to enhance happiness and well-being include:

• Practicing gratitude: Appreciating the positive aspects of life through journaling or gratitude visits can enhance happiness.
• Mindfulness and meditation: Being present and non-judgemental in one’s experience can increase overall well-being.
• Focusing on meaningful activities: Engaging in tasks that provide a sense of purpose contributes to eudaimonic happiness.
• Nurturing social connections: Building and maintaining strong relationships improves well-being.
• Physical exercise: Regular physical activity has a positive effect on mood.
• Setting and achieving goals: Working towards goals can increase self-efficacy and create a sense of achievement.
• Learning new things: This promotes cognitive stimulation and personal growth.
• Practicing self-compassion: Being kind and understanding towards oneself during difficult times is essential.
• Focusing on the present moment: Being able to savor the small moments and simple pleasures can enhance life satisfaction.
• Applying positive psychology interventions: Specific interventions such as using one's strengths, writing about positive experiences and practicing acts of kindness can enhance happiness and well-being.