Hi Kiran,
A funny question indeed.
The answer is:
Step 1: Cut it horizontally at the diameter's length.
Step 2: Vertical cut (again at the diameter's length).
By now, you have 4 equal pieces.
Step 3: In an upside-down direction (from the middle) of the cake, cut it into two pieces. You now have 8 equal pieces.
By the way, what was the position you have applied for?
Regards,
Shuchi Punjani