How is the moon similar to a dollar?

The dirtier I get, the whiter I look. Who am I?

Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?

what does the below rebus means?

How do you go from 98 to 720 using just one letter?

Take one out and scratch my head, I am now black but once was red. What am I?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

Can you find a five letter word that is left with only two letters if one is removed?

Move four matchsticks to the below square to form three squares?