Name at least 4 other gases in the atmosphere besides oxygen and nitrogen

78.08% nitrogen 
20.95% oxygen 
an average of 0.247% water vapour (very variable) 
& approximately 1% of other gases 

These other gases are the noble gases consisting of :- 
Argon (0.93%) 
Neon (less than 0.01%) 
Helium (less than 0.01%) 
Krypton (less than 0.01%) 
Xenon (less than 0.01%) 
Radon (less than 0.01%) 

Regarding non-Nobel gases, there is also Carbon dioxide at 0.038%, and tiny traces of Hydrogen. 

There are minute quantities of many other gases, such as methyl iodide, produced by bio- and geo-chemical reactions and used in bio-chemical reactions in living organisms, and whose importance to all life even in concentrations of less than one part per million million is only just beginning to be realised.

6, 4, 5, 1 are true. the others are false.