You'll require a pencil and paper for this mind mystery. This rationale confuse was found on Mathisfun.com.

[Here's the Puzzle]

You are entrusted with cutting a donut shape into nine separate pieces utilizing straight lines as it were. The pieces can be of any size, yet the cuts must be straight. What is the most modest number of cuts that will abandon you with nine bits of the donut? Where do you slice the donut to get those pieces? Look down to see the arrangement.

[Here's the Solution]

You just need three slices to give you nine pieces. See the realistic underneath for how these straight cuts can be organized. Did you get it?