Spotting the error ( subject verb agreement) for ssc, bank,NDa,cds,etc exam

1:- neither of them / are going to attend / the party on 10th october./ no error

2:- He walked five miles which are really a great distance / for a man like him who is not only old but also ill/ ne

3:- Either my colleague / or a peon are comming home / with the material today/ ne

4:- The rise and fall / of the tide are due / to lunar influence/ ne

5:- many a man / have succumbed / to this temptation / ne

6:- The introduction of tea, coffee/ and such other beverages / have not been without some effect/ ne

7:- The newer type of automatic machines / wash / clothes faster/ ne

8:- each of the students in the computer class / has to type/ their own research paper this semester/ ne

9:- everyone of the films / you suggested / are not worth seeing/ ne

10:- The secretary and /principal of the college are attending / the district development council meeting at the collectorate/ ne