the conversation would go
ittekimasu
itterashai
hai
A common word for "welcome" as in "Welcome to ~" is 'youkoso.' In shops and other locations, you would likely be welcomed by employees with 'irasshai(mase)'
Eres cómico(a) translates to, "You are funny". You would respond with, "Thank you" or "I know I am".
¿Cuál es tu nombre? means What is your name. You would respond: Mi nombre es (insert name).
'Toire,' 'otearai,' and 'benjo' all refer to the restroom in Japanese.
It means "what do you need for English class". In order to respond, you would say in Spanish what you need for English class.
Itte Detenamo was born in 1986.
Irasshai
Minna Itte Shimatta was created on 1976-10-25.
tabette itte
A common word for "welcome" as in "Welcome to ~" is 'youkoso.' In shops and other locations, you would likely be welcomed by employees with 'irasshai(mase)'
nanka itte
itte ki mashita
jibun de itte
mou ichido itte kudasai.
It can be either one, depending on your meaning. You would "respond to" a question or comment directed at you. You would "respond for" someone else who cannot respond for themselves.
hittori de itte ii desu
'Anta no ban' or 'anta no itte' (in games).