I've added the missing answers,
Ishan's answers in brown color, my comments in BOLD black color]
Actor for Dr. Hansraaj Haathi's role had been replaced, but there is also one more character whose actor/actress is replaced, who is that?
I think its Mohanlal , it was being played by someone else earlier !!
Answer: Rita Reporter is replaced with a new girl. You can see the older Rita Reporter in the Champak goes to jail episode.
1. two occasions, when Iyyer gives cash money to Jethalal.
When Babita bought Red cherry phone from Jetha and also when he had asked Jetha to replace his mobile battery.
Yes and third was recently when for Krishan Ben Khakhrawala episode, Iyyer comes to buy cheap mobile for his office peons.
2. two occasions, when Jetha was under tension/stress for having big amount of money in his house.
When one of his builder friends gave money to Jetha to keep it with him and secondly when Sunder had asked Jetha for money to buy some land in Ahmedabad !
Third during that Anajli's necklace stolen episode.
3. three occasions, when Popatlal changed his umbrella!
Once I think when Kerry arrived, then when Koyal came and lastly when Jetha broke his umbrella.
DAMN RIGHT 100%
4. Two occasions when Gogi was 'lost/missing' and everyone got panic
Once when they went to picnic to tikujiniwadi and once when Tappu sena faked his kidnap !
DAMN RIGHT 100%
5. atleast 3 occasions, when Champak went to Jetha's shop!
One was during laxmi pujan in diwali last year and other time when he had to donate some amount of money to poor kids , he had gone to collect that money!
DAMN RIGHT 100%
6. atleast 2 non-Indian characters appeared in this serial, apart from Kerry?
Chima-man selling roti-maker
Foreigner-wanting to buy LCD during black-money of builder episode.
7. Name 5 stories when criminals entered Gokuldham society?
One was the ghost story , then once thieves had come in as some gas connection providers
8. Two stories when Jetha & Babita-ji were alone in Jetha's house, without any other adult character present?
One when that ex- female employee of Jetha comes to his house to blackmail him.
Second time during, when Daya goes with her friend for shopping and that friend asks jetha to look after her boy.
9. Name 5 stories when Jetha & Tarak are shown together outside Gokuldham society?
10. When did Tarak Mehta goto Rajasthan?
When Iyyer had fractured his leg !
RIGHT!
11. Why did Jetha donate money to a Vidhwaa Ashram (or charity institution)?
He asked that Vidhwaa ashram to buy achaar from Madhvi, as Bhide hadn't recieved tution fees before Diwali and their family was in desperate need of money.
12. Occasions where Jetha actively refused to obey his dad Champak's orders?
Once was during diwali when Tappu wanted to go to ahmedabad and Jetha said he cant close his shop since he does max. business during that time !
Second : Tappu's Child marriage
Third: Jetha becomes kidney agents, won't listen to Tarak / Champak
13. 'Dibba-master' was nickname of which character? And why?
Popat becoz he always talks pessimistically 😆
No yaar, Popat is only 'dibba' (as Champak calls him)
Dibba master was the nickname given to JEtha by villagers when he was young, as he used to beat a dibba like drum-master all the day.
(reference given in the Whistle in Bhide's throat episode)
14. Which characters of this serial have so far visited Shirdi Sai baba?
Sundar (water wasting ep.)
Champak (Red-cherry ep, I think)
15. Jetha gets scarred from at least two non-human things, which are they?
Dogs and Ghosts 😕 😆😆
Buffalos, coz Champak once tied him to a buffalo
Pataakhe (Noise making crackers), (the noise-less firecracker episode)
16. Jetha touches feet of only two characters. One is his dad Champak, who's the other character?
Nattu Kaka
RIGHT!
17. Contact name given for Sundar's mobile number in Jetha's cellphone?
Panvati ! 😆
AGAIN RIGHT!
18. On which occasion did Jetha & Tarak agree that Iyyer is a 'lucky' man?
19. Why did Tarak call himself 'Papitaa'?
Patni-Peedit Taarak (Gobachaari episode)
20.Two occasions when Iyyer went to Jetha's house but Jetha was absent and only Daya was present?
Once was when Iyyer told Daya that he is taking babita to lonavala and she should not tell it to Jetha and other was when Jetha gave that weird shampoo to Iyyer and when Iyyer came back to ask Jetha but Jetha wasnt there !
Third, when Iyyer came to fetch his Red-Cherry mobile.
Following characters re-appeared in the serial in atleast two different story-tracks. List those stories
1. Tina (Tappu's bride & that saree-selleer's daughter)
2. Tappu's school peon (that dwarf has appeared in many episodes)
3. Satyawaan Faulty Sarees and Ghost story ! (+Minaxi powder)
4. Chaalu Pande GPL and Chalu Pandey (+Love Guru)
5. Panipuri walla (+Rickshaw driver)
6. Drunk driver who crash-landed his tempo @ the gates of Gokuldham As a thief once , as a taxi driver once
List the Amount of money
1. Paid by Iyyer to buy red sports car 4 lakhs
2. Paid by Jetha for IPL tickets (11000)
3. Paid by Jetha & Sodhi as 'token' amount to buy Chandiramani's flat 51000 and 25000 respectively !
38