When it's bad luck to meet a black cat?

You can find some missing letters in the picture. By placing two particular letters in the spaces, you can form a nine lettered word beginning from one of the corners and going clockwise direction to the middle. Can you find out the letters and the word?

You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

Two natural numbers have a sum of less than 100 and are greater than one.

John knows the product of the numbers and Jacob knows the sum of numbers.

The following conversation takes place between them:
John: 'I am not aware of those numbers.'
Jacob: 'I knew you wouldn't be. I am not aware myself.'
John: 'Now I know them!'
Jacob: 'Now I know them, too!'

What are the two numbers?

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

I cannot talk, but I always reply when spoken to. What am I?

Count the number of squares in the picture below.

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

If a wheel has 54 spokes, how many spaces are there between the spokes?

What you cannot hold but it is yours?