Prove that the below maths equation is true.

8 + 8 = 91

Can you write down eight eights so that they add up to one thousand?

I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?

Prove that twice of ten is the same as twice of eleven.

There is a wide field of corn. A goose finds its way into the field and starts running. Can you find out till which point the goose can run into the field?

Can you write down eight eights so that they add up to one thousand?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

In the image below, can you find the value of an angle(y)

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

What word begins and ends with an E, but has only one letter?