Look. You need to stop your watch at 00:00. And then you'll see that its least count is 0.01 second and then you should add your clocks' response time to make results more accurate.
B. Queries
Queries can be fairly broad or written to focus on time frames, types of data, ranges etc.
Answer:
The cell address of 4th row and 4th column is
4D/D4
A virus or malware appearing/pretending to be a legitimate program is called a Trojan.
