Can anyone tell me a word in the English dictionary which has a silent 'z'?

For this puzzle, you might have to find logic in something illogical. But hey, it's fun and a healthy little break from your strenuous puzzle-solving sessions.

Can you decipher the meaning in the following cluster of letters?

ITIT,NCENTCENT

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

What is red and smells like blue paint?

A sundial has the fewest moving parts of any timepiece. Which has the most?

In the attached figure, you can see a chessboard and two rooks placed on the chess board. What you have to find is the number of squares that do not contain the rooks. How many are there?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

What makes this number unique: 8,549,176,320?

If we tell you that there is a relation between the numbers and letters in the given figure, can you analyze it and find the missing letter in the last box?