4. 4___4___4___4 = 20 Use +, -, /, * how to Solve It?

here is the answer for this question...4/4+4*4=20
hence it is proved.this is the apt solution for this question

5. What is employee MAPPING in recruitment?

It is a mapping technique to assess the performances
and potentials of the employees. This provides a clear
picture which employee is performing well and which
employee has more potential and need training. It is
helpful for performance apprisal and reward/salary
determination too. The procedure can be applied during
recruitment. But for accurate mapping it is necessary that
the employee should have worked for few months. Using tools
for mapping can also yield proxy-results which can be used
by the employer during selection.

6. Is it an open mind or a open mind tell the correct article?

It will be An open mind because OPEN is started by vowels O
and its prenaunciation is also started from Vowels.

7. What is the IIS, and why we use it?

IIS stands for Internet Information Service that is one of the local hosts to run ASP.NET project.