Can you replace the question mark with the correct number?

If 21x = 79x, what is the value of x?

Which Burger Is Different in below image?

In which direction should the missing arrow point?

Which wheel of car does not rotate when you turn your car right?

You have a 12 liters jug full of water. You have two empty 8 liters and 5 liters jug. How can you divide the water into two equal parts using these jugs?

Find the Odd One Out?
84129
32418
47632
36119
67626
72927

I am dry when I go inside, but wet when I am pulled outside.
The longer I am inside, the stronger I get
When I am completely out, I am wet and I literally sag
Who am I?

When it is alive we sing, when it is dead we clap our hands. What is it?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3