There was an aeroplane crash, every single person died, but two people survived. How is this possible?

There were two grandmothers and their two granddaughters.
There were two husbands and their two wives.
There were two fathers and their two daughters.
There were two mothers and their two sons.
There were two maidens and their two mothers.
There were two sisters and their two brothers.
Yet there are only six, who are buried here,
All are born legitimate and relationships clear.
How can this happen?

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

Below, you can see some coding:
January = 1017
February = 628
March = 1335
April = 145
May = 1353
June = 1064
July = 1074
August = 186

Now deciphering the way it has been coded, can you find out how September will be coded?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

A donkey is behind another donkey
I'm behind that second donkey
But there is a whole nation behind me

It is a murder you can describe in a word.

A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days?

What can you catch but never throw?