Echoing
@Bert_ comments.
- Do you believe that Truss has below average or above average intelligence
I'm not sure about intelligence generally but as for a politician and a minister she is clearly not up to the job and is lacking any self awareness. Her main aim now is to appeal to right wing rhetoric to make further money which shows she knows who she is pandering to.
- if it is above why she failed as PM
She was incompetent in many ministerial roles before hand. She decided to run for leadership, cheered on by delusional supporters and thought she was great because she was applauded at Tory membership hustings events when going for leader. She was met with friendly questions and hardly any scrutiny. This made her feel she would be great in the role. However upon being appointed, it soon became apparent what everyone else knew that she was incompetent and had no clue how to be PM. She was then removed by her own party not anyone else.
-if it is below, how she ever got near any position of power let alone MP
Selection of candidates for election of MPs and then ministerial positions are political decisions. Due to the voting system in the UK, most areas will vote Tory even if there was a pig with a blue rosette. You just have to look at some of the names in parliament at the moment: Anderson, Gullis, Francois, Atkins, Braverman, Swayne, Jankyns, Fabricant, Trott etc I could go on forever. Then these people are selected for minsterial posts if they align themselves with the PM. Truss was kept around but she was useless in all of her positions. There is no IQ test for MPs and alot of them have no idea of the real world. Just look at Sunak in most situations.