They believe in one god, who can be referred to as any of the following:
Sat Nam - Eternal Reality
Akal Purakh - Eternal One
Waheguru - Wonderful Lord
Sources: BBC bitesize
They are called the ten sikh gurus. Guru means teachers. The reason they are not called gods because there is only one god and no one is equal to him. However the gurus do have the light of god. The names of the gurus are:
guru Nanak dev sahib ji
guru Angad dev sahib ji
guru Amar das sahib ji
guru Ramdas sahib ji
guru Arjan dev sahib ji
guru Hargobind sahib ji
guru Har rai sahib ji
guru Harkrishan sahib ji
guru Teg bahadur sahib ji
guru Gobind singh sahib ji
The 11th guru is guru granth sahib ji which is the holy bible and it is believed that the light of the ten gurus is in the bible.
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(sahib ji are not their last names. they are put after names of the gurus for respect)
Ik Onkar is the name of the God for the religion Sikhism.
they read from the guru granth sahib
Sikh Scripture says that when there was no creation there was nothing at all. Then there was only God and His Will. When God willed, the creation came into existence.
ten gurues
India
A fact about Sikhism: they have turbans.
Sikhs pray in a Gurdwara
it is called a guru
Approximately 23 million worldwide.
Sikh prays at Gurdwara. Sikh can pray anywhere
religions, sects or cults which have evolved from Sihkism
Sikhism has a sacred test known as the 'Guru Granth Sahib Ji'