Replace the question mark with the correct number below.

Sharpen your observation skills as you compare two seemingly identical images. Grab a magnifying glass, involve a buddy, and unleash your inner detective. Check the solution to see if you're a difference-detecting maestro!

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

Find out the missing number in the picture attached:

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

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

Keyboard words are not in alphabetical order, Why?

Below, you will find the mathematical proof that 10 equals 9.99999?. But is that possible or there is something wrong about it? Can you find the error?

x = 9.999999...
10x = 99.999999...
10x - x = 90
9x = 90
x = 10

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

The below is a number puzzle. It should be read left to right, top to bottom.
1
1 1
2 1
1 2 1 1
1 1 1 2 2 1
? ? ? ? ? ?
? ? ? ? ? ? ? ?
Question 1: What are the next two rows of numbers?
Question 2: How was this reached?