2. Pre-marital co-habitation

Guest: Jang Sora & Lee Gukjoo

3. Career pursuit

Guest: Shin Haechul

4. Dating

Guest: Soyou & Oh Nami

5. Compulsory sex education

Guest: Haha & Skull

6. Relationships

Guest: Jo Seho

7. Marriage

Guest: Hong Sukchun & Ahn Youngmi

8. Seoul living

Guest: Rose Motel

9. Raising children

Guest: Kim Gura

10. Chuseok special

Guest: Sam Hammington

11. Job application requirements

Guest: John Park

12. Internet/Smartphone usage

Guest: Jo Kwon

13. Spending money on friends

Guest: Yoo Sang Moo

14. Maintaining good health

Guest: Lee Yoon-Suk

15. Parenting

Guest: Park Ji-Yun

16. Foreign language studies

Guest: Jang Gi-Ha

17. Dreams and happiness

Guest: Kim Sung-Kyun

18. Break-ups, divorce

Guest: Gong Hyung-Jin

19. Love, romance problems

Guest: Jang Yoon-Ju

20. Generation gap

Guest: Super Junior's Eunhyuk and Kyuhyun

21. The bond of brothers

Guest: Kim Bum-Soo

22. Workplace sex discrimination

Guest: Bobby Kim, Sayuri Fujita

23. Crime and Safety

Guest: Kangin, Zhou Mi

24. Entrepreneurship

Guest: Lee Sang Min

25. Christmas Special

Guest: Yoon Min-Soo, Ryu Jae-Hyun

26. New Year Special

27. Philanthropy

Guest: Noh Seung-hwan (Sean Noh)

28. Private education

Guest: Kim Kwan

29. Anger and rage

Guest: Park Chul-min

30. Noblesse oblige

Guest: Seo Jang-hoon

31. Study abroad and immigration

Guest: Kang Yong-suk

32. Lies and rumors

Guest: Kangnam

33. James Hooper special update

Guest: James Hooper

34. Retirement plans

Guest: Kim Kwang-kyu

35. Fashion trends

Guest: Moon Hee-joon

36. Midlife crisis

Guest: Yoon Do-hyun

37. Wealth

Guest: Hong Jin-ho, Kang Kyun-sung

38. Television

Guest: Jo Young-nam

39. New academic term

Guest: Kim So-yeon

40. Food and eating

Guest: Kim Tae-woo

41. Conscience and morality

Guest: Baek Ji-young

42. Lookism

Guest: Kim Jun-hyun

43. Education of Gifted and Talented Children

Guest: Jang Jin

44. Jobs

Guest: Huh Young-man

45. Own Home

Guest: Song Eun, Kim Sook

46. Haterism

Guest: Chin Jung-kwon

47. Leadership

Guest: Onew, Choi Min-ho

48. Making people laugh

Guest: Kim Young-chul

49. Law

Guest: Robert Holley

50. Girl groups and Middle-aged men

ㅎGuest: Jo Min-kiGuest: Jo Min-ki

51. War and Peace

Guest: Chin Jung-kwon

52. 1st Anniversary Special

53. The best place to live

Guest: Hwang Kwang-hee

54. Hypersensitivity Reaction of Mers

Guest: Hwang Seok-jeong

55. Desire

Guest: Im Won-Hee, Son Ho-Jun

56. Correct Answer

Guest: Lee Hoon

57. World Economy, Greek Financial Crisis

Guest: Choi Jin

58. Dangers of Science and Technology

Guest: Park Joon

59. Gender Role

Guest: Hong Jin-Kyung

60. Multiculturalism

Guest: Jeong Jun-Ha

61. Decision-making

Guest: Jang Do-Yeon

62. National Psyche and Country Development

Guest: Heo Kyung-Hwan

63. Enviromental Protection

64. Working vs. Getting Education

65. Chuseok Special

66. Ill-fated Relationships

67. Creativity

68. Importance of Eating Breakfast

69. Miscommunication Between Men and Women

70. A World without Crime

71. Social Polarization

72. Personal Privacy and Privacy Law

73. Part-time Work Impeding Carreer Advancement

74. Boasting

75. War on Terror

76. Making A Good First Impression

77. Legendary Music

78. 2015 Top Global Issues

79. Utopia

80. Interest in Politics

81. Love of Pets

82. Personal Branding

83. Debt

84. Couple's Holiday Fighting

85. Real Friendship

86. Mainstream and Non-Mainstream

87. Children's Life Satisfaction

88. Planning for Older Age While Young

89. The 3rd Hallyu

90. Time Management

91. Understanding People's Behavior Using Data

92. Neighbor Problems

93. Comparing Yourself to Others

94. Wanting Constant Attention from Others

95. Minimalist Lifestyle

96. Conspiracy Theories

97. Ageing Gracefully (Or Not)

98. Syrian Refugee Crisis

99. Natural Disasters

100. 100th Episode Special - Part 1

101. 100th Episode Special - Part 2

102. Happiness