Find the missing number in the sequence below:

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

How many sides does a circle have?

What's the only room from which no one can enter or leave

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

By using all numbers, i.e. 123456789 and subtraction/addition, operators number 100 can be formed in many ways.
Example: 98 + 7 + 6 - 5 - 4 - 3 + 2 - 1 = 100

But if we add a condition use of the number 32 is a must. Then there are limited solutions.
One of such solution is: 9 - 8 + 76 + 54 - 32 + 1 = 100

Can you tell me any other solution?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

Spot the cat in the picture below

How is the moon similar to a dollar?

500 women soldiers are arranged in an array of ten rows and fifty columns in accordance with their respective heights. Now, the tallest woman from each row is asked to move out in the front. From them, the shortest one is labelled as Alpha. They are then asked to resume their original position.

Now, the shortest woman in each column is asked to come out in front. The tallest among them is labelled as Beta.

Can you find out if Alpha will be taller or Beta?