一些英语智力题

which one is farther to you,your mum or dad?dad,because dad is father.

1.Which word can involve five vowel letters? dialogue
2.The modern Olympic Grames started in ?1894.
3.If all the letters were asked to a tea party ,which letters would be late ? UVWXYZ
4.What letter are people the most afraid of ?E
5.If post is 1234,"top"will be ?421