I think my house is haunted, what do you think guys?

first, i'm so sorry about my english. i hope you understand what i write.

1. it happens almost everyday. every night i always hear like someone is cooking in my kitchen, the sound is very loud that always wake me up at midnight. it's because my room is the nearest to the kitchen. i asked my sister about the sound and she said she heard it too. and then when i asked my cousin about it he just said "i was the one who cooking *laugh*". but i still don't believe. how come he always cooking at midnight everyday. and my family was so noisy because my uncle (he can't talk so he speak using sign language) was acting weird. he was so afraid of a girl with long hair, he afraid of me too, lol. my family asked him why and he said that he saw a girl with long hair, white dress, and floating was cooking in my kitchen. my family just said "i know you are drunk, that must be just your hallucination", so my family didn't believe it. but i think i believe him.

2. when i sleep with my parents, i heard someone knocking the door non stop. i woke my dad and he just said "ssshhhtt...don't talk and just sleep"

3. when i sleep in my sister's room, at midnight i heard someone is opening and closing the door over and over again in slow mode, lol. and i think the sound is like sadako's voice. aaaah...that was so creepy. i told my sister and she said " wow, you heard it too? haha".

there are many other stories, but I've forgotten. hehehe...
what do you think guys? is my house haunted or not?
if you have a story too, feel free to tell me. because i love horror story, lol