Fix Bugs in Unity 2017.1.0f3 project-2

You need to fix bugs in Unity 2017.1.0f3 project. I'll explane the bugs in teamviewer. You must to listen the sound. 1) when clicking on the same number there is repeating echo of the voice. Need block that. Need hear only the voice once. Also when clicking on terrain and air. 2) Memory Game. When pressing on two same buttons and then quickly on third the third button dispersal, but need that two same buttons will disappear. And when clicking on matching first button and then on second matching button the first matching button rotates 180 deg. need to do that will not rotate and when clicking on second matching button will two buttons disappear. 3) I need the Document you write what did you do.