Kuwait

Article 4, clause 5 states:

The Heir Apparent shall have attained his majority, be of sound mind, and a legitimate son of Muslim parents.

Article 61 states:

In the event of his absence outside the Country and the inability of the Heir Apparent  to  act  as  Deputy  for  him,  the  Amir  shall  appoint, by an Amiri Order, a Deputy who shall exercise his powers during his absence. The said Amiri Order may include a specified arrangement for the exercise of the said powers on behalf of the Amir, or a limitation of their scope.

Article 82 states:

A member of the National Assembly shall:...

• (2) be qualified as an elector in accordance with the electoral law...(4) be able to read and write Arabic well.

Article 125 states:

A Minister has to satisfy the qualifications laid down in Article 82.

Excerpts from Kuwaiti Constitution (1962)