What is the longest word in the dictionary?

Replace the question mark with the correct number in the below-given picture?

Why is the Hole below a Lock?

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

I can sizzle like bacon,
I am made with an egg,
I have plenty of backbone, but lack a good leg,
I peel layers like onions, but still remain whole,
I can be long, like a flagpole, yet fit in a hole.

What number do you get when you multiply all of the numbers on a telephone's number pad?

Find the combined weight of the Cat, Dog and Rabbit in the given picture.

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

Look at the picture and find out which square is not linked with any of the other squares.

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?