Who is the inventor of mouse ?

I am confused. Some says douglas engelbart and it is on wikipidia. But in many gk books i found wilium bil english. I need it coz i am in a quize compitition. If you can also answer my other to questions below because they are also confusing. * wher is the computer musium (some people says its in paris but i... show more I am confused. Some says douglas engelbart and it is on wikipidia. But in many gk books i found wilium bil english. I need it coz i am in a quize compitition. If you can also answer my other to questions below because they are also confusing.

* wher is the computer musium (some people says its in paris but i found its in uk's atlanta in the book)
* how many seats are ther in uropean parliament at preasent (be 100% sure about the preasent condition)
and* who was the youngest player of t20 world cup.
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