In the UK House of Commons there are 650 MPs. However there are not enough seats for everyone.
308 seats
650
234.
go there and find out
308
In the House of Commons, they have 77 of the 308 seats. In the Senate, they have 49 of the 105 seats. Hope that helps.
258 from May 2010
649 in total in the House of Commons - 650 in the House of Lords.
There are currently 408 seats in the House of Commons. I have a related link listed below that has some helpful test sources.
It has 11 seats in the House of Commons and 10 in the Senate.
The Canadian House of Commons has 308 seats. Currently, one seat is vacant.