In certain code 'TIGER' is written as 'QDFHS'. How is 'FISH' written in that code?

In each of the following questions, a series is given, with one term missing. Choose the correct alternative from the given one that will complete the series.
2, 3, 9, 49, ?, 3841

In a certain code CRICKET is written as GPAGVGM, then how can REMOTES be written in that code?

In a certain code TASK is written as 6 and WITH is written as 6, then how can HAND be written in that code?

A man walks 5 km towards the north. From there he turns right and walks 15 km. Then he turns back and walks 20 km. From there he turns to left and walks 20 km. Finally, he turns to left and walks 5 km. How far and in which direction is he with reference to his starting point?

In a certain code ROSE is written as @%$# and PREACH is written as *@#18&, then how can SEARCH be written in that code?

(i). There is a group of five persons – A, B, C, D and E.
(ii). One of them is a horticulturist, one is a physicist, one is a journalist, one is an industrialist and one is an advocated.
(iii). Three of them – A, C and advocate prefer tea to coffee and two of them – B and the journalist prefer coffee to tea.
(iv). The industrialist and D and A are friend to one another but two of these prefer coffee to tea.
(v). The horticulturist is C`s brother.
Who is an industrialist?

There are five friends A, B, C, D and E. Two of them are businessmen while the other three belong to different occupations viz. medical, engineer and legal. One businessman and the lawyer stay in the same locality S, while the other three stay in three different localities P, Q and R. Two of these five persons are Hindus while the remaining three come from three different communities viz. Muslim, Christian and Sikh. The lawyer is the oldest in age while one of the businessmen who runs a factory is the youngest. The other businessman is a cloth merchant and age wise lies between the doctor and the lawyer. D is a cloth merchant and stays in locality S while E is a Muslim and stays in locality R. The doctor is a Christian and stays in locality P, B is a Sikh while A is a Hindu and runs a factory.
What is E's occupation?