Example : The bullets riddled his body.

Example : Riddle me a riddle.

Synonyms : screen

Example : An atmosphere of distrust has permeated this administration.
Music penetrated the entire building.
His campaign was riddled with accusations and personal attacks.

Synonyms : diffuse, imbue, interpenetrate, penetrate, permeate, pervade

Synonyms : brain-teaser, conundrum, enigma