difference between pleasure, pleased, pleasant

pleasure - noun(дур хүсэл, таалал)pleasure"- It is a pleasure to cook for such wonderful guests. (noun) and "Pleasure" is an abstract(хураангуй, товч) noun, meaning a good feeling.
1 [uncountable] a state of feeling or being happy or satisfied
       ---- to read for pleasure
2 [uncountable] the activity of enjoying yourself, especially in contrast to working
       ---- Are you in Paris on business or pleasure?
pleased - adjective (сэтгэл хангалуун)"pleased" - I am pleased that you like the way I cook. (adjective) and "Pleased" means someone has received pleasure. It's the passive voice.
1 feeling happy about something
       ---- She was very pleased with her exam results.
2 happy or willing to do something
pleased to do something
       ---- We are always pleased to be able to help.
pleasant - adjective(тааламжтай сайхан, таатай)a pleasant smile = a friendly smile, and pleasant - nice looking, nice feeling, "a pleasant day", "a pleasant face"
pleasanter, pleasantest
help more pleasant and most pleasant are more common
1 enjoyable, pleasing, or attractive
       ---- to live in pleasant surroundings
2 friendly and polite
       ---- a pleasant young man

pleasing - (таашаагдсан, тааламжтай)"Pleasing" means something gives pleasure. It's the active voice. "pleasing news," (meaning news that pleased you)

that gives you pleasure or satisfaction
     ---- a pleasing design

difference between pleasure, pleasant, pleased, pleasing

• pleasure - a feeling or stimulation that is not generally regarded as pain. pleasant - nice looking, nice feeling, "a pleasant day", "a pleasant face" pleasing - to give pleasure. "a pleasing face", a face that gives you pleasure. please - the verb of pleasing.

• what the difference between:
  "pleased" - I am pleased that you like the way I cook. (adjective)
  "pleasure"- It is a pleasure to cook for such wonderful guests. (noun)
  "pleasant" - You are always so pleasant. Do you every get grouchy or upset? (adjective)
  "pleasing" - If I have a pleasing personality, everyone should like to be around me. (adjective

• "Pleasure" is an abstract(хураангуй, товч) noun, meaning a good feeling.
  
  "Pleasant" is the adjective form. It's quite similar to the meaning of pleasing, except "pleasant" can't be used as a verb in the continuous form.
  
  "Pleasing" means something gives pleasure. It's the active voice.
  
  "Pleased" means someone has received pleasure. It's the passive voice.

difference between pleasing and pleasant

• I would say that, in most cases, "pleasant" is preferable(эрхэмлэсэн) to "pleasing." Any time when you could say, for example, "pleasing news," (meaning news that pleased you), it would be more idiomatic to simply say "good news." Off the top of my head, I can't think of any cases where you would say "pleasing smile" over "pleasant smile," though it's entirely possible that they exist. I wouldn't say that using "pleasing" in these cases would be wrong, exactly. It's just not something that you hear a lot.

• In those examples you gave, I think, ''pleasing'' means ''satisfactory'' where as ''pleasant'' means ''friendly''.
  
  a pleasant smile = a friendly smile
  pleasing news = satisfactory news

• She had a pleasant personality.
  The student tried pleasing the teacher by doing his homework every night.

• "her pleasing smile gives me a pleasant experience." 
  
  my idea is that, 'pleasing' - the adjective ending in "ing" (participle adjective) deals more of our emotion / feelings - causes us to interact. 
  
  what does her smile brought you? 
  
  'pleasant' on the other hand, merely describe the attribute of the noun. 
  
  how do you describe the experience of seeing her smile?