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

Can you solve the below rebus?

You enter your friend's room. He is not in his room. Although you see that on the bed there are two dogs, five cats, two giraffes and three pigs. Also, a couple of chickens and ducks are flying in the room.

Calculate the number of legs standing on the floor.

I start and end with 500 and carry a 5 in my heart. But I require the first letter and the first number to be complete. I am the name of a King.

Who am I ?

Solve The below Equation:

ALFA + BETA + GAMA = DELTA

Which Travels Faster? Solve below famous picture riddle:

If,

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

Given below is simple addition with a defined pattern pattern:
7 + 7 = 2
8 + 8 = 4
8 + 5 = 1
6 + 9 = 3
10 + 11 = 9

Can you analyze the pattern and find out the answer for:

4 + 9 = ?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

What is the probability of getting five Mondays in a 31-day month?