Participating in a savings scheme with a petroleum company
Question

                1.     What is the ruling on saving with the Aramco company, whether as an investor or otherwise?

2.     What is taqiyah according to the Sunnis and the Shi’ah?

3.     Is it permissible to call Shaykh Ibn Baaz “Imaam”? and who are the Imaams according to the Sunnis?
Praise be to Allah.
    1.It seems that you should not 
    save with the Aramco company, whether as an investor or otherwise, because 
    you would be giving less money and taking more than the money given, which 
    is the essence of riba, because when investing one is not subject to the 
    risk of increase or loss, rather the profit is guaranteed, so it seems that 
    this is not allowed.

    2.According to the Sunnis, 
    taqiyyah (dissimulation) means being sociable or affable without any 
    hypocrisy or sycophancy, when it is necessary to be affable and say things 
    that one does not believe, in cases where the Muslim fears for his life, but 
    his heart is at peace and believes.

    But for the Shi’ah, taqiyyah means outwardly appearing to 
    agree with one's opponent, even if he is right, whilst inwardly opposing him 
    and persisting in their false beliefs. This is the essence of hypocrisy 
    which means making an outward display of being Muslim whilst inwardly 
    concealing kufr.

    3.Shaykh Ibn Baaz is one of the 
    imams (leaders) of guidance, and one of the most prominent scholars of 
    sharee’ah which he supported and paid attention to, so he deserves to be 
    regarded as a leader in Islam.