I don’t know.
An octahedron is a closed 3-d shape with 8 polygonal faces. There are 257 topologically different convex octahedra. In addition there are concave octahedra. Some of these will have no obtuse angles, others will have several.
It has two obtuse angles
A rhombus have 2 obtuse angles
There are no angles they are all obtuse angles
There are 3 obtuse angles in a heptagon.
A trapezium has one or two obtuse angles.
An obtuse triangle can have no right angles, and has two equal angles.
One and the two others are acute angles
A trapezium has 2 obtuse and 2 acute angles.
A regular octagon has 8 interior obtuse angles.
There are 3 obtuse angles. All 3 exterior angles are obtuse. (This is, admittedly, a bit of trick question!)
A triangle can have at most one obtuse angle, but triangles do not necessarily have any obtuse angles.