Muslim woman working

Q: I am a 19 year old Muslim female. I want to do a vacation job because I am on holiday from university. I will be working in a ladies only environment, doing administrative work. I live with my retired grandparents and younger sister. My parents are deceased.

Is it permissable for me to take this job to earn extra pocket money and to build up experience that will benefit me later on?

Favouring a contractor who is one's friend after closing a tender

Q: 3 Companies were invited to construct a building. They were invited which would mean that they are all of equal stature. We were all in by the client prior to the tender closing and where the client advised us of his needs. We received the tender results but were advised a few days later that all three prices were too high for the client. I asked asked if we could assist and negotiate with the client to lower our price to come in line with the client. We were then advised that the client had negotiated with the company that had the highest price. It is common knowledge that the client and this contractor are friends and possibly family. Is this Nepotism and is this allowed in Islam.

Earning by investing some money by liking and subscribing to different YouTube channels and uploading them to an app

Q: There is an online app in which you get a daily job by investing some money by liking and subscribing to different YouTube channels and uploading them to the app. It gives daily money on account of investment. Like invest 15000 rs and have to do 10 daily tasks and get 600 rs daily. Is it halal?

Saying words to overcome sadness and learning positive things from a person who practices shirk

Q:

1. I learnt a technique to help with sadness, this is how the technique works, you say a positive word very slowly, with intention this word will have a positive effect, is this permissible or its kufr?

2. Someone who practices shirk and kufr philosophy, would it be permissible to learn from him positive things that doesn’t have shirk and kufr? 

Management charging an employee a fee for errors committed and distributing it in charity

Q: Is the following condition permissible ?

Contribution of R50 by the employee to a charity for any errors/mistakes at management’s discretion. "The Company" will be the representative of the employee and will handle any relating contributions.

DECLARATION:

I ______________________________, approve "The Company" as my representative to contribute R50 to a charity of their choice from my wage/salary for any errors/mistakes committed.

Yoga

Q: IS YOGA PERMISSIBLE AS PHYSICAL EXERCISE?

I've been diagnosed with ovarian failure and it's been difficult for me to get periods. I was prescribed to do yoga, and have got periods by doing them before too. But there's been many contradictions regarding yoga. I've tried normal exercises instead of yoga but didn't get any results, except for weight loss.

Would it be permissible for me to practise yoga poses without doing anything against the Islamic aqeedah? I take special care to ensure I don't do any doubtful poses like sun salutation (I just ended up doing it onetime without knowledge, that too I didn't complete it properly because it looked doubtful) and all. I also avoid taking it as anything except for prolonged physical movement.

Training to be a boxer

Q: We are aware that boxing and hitting the face or head isn't allowed. In some places, training is undertaken with headgear and other protection, this happens under the supervision of trained professionals. This is only for training and not on a professional level.

Is this permissible?