Replace the question mark with the correct number.

what's the probability of getting a king or a queen from a pack of 52 cards?

There is a jar in which there are two types of candies.
20 blueberries and 16 strawberries. You perform the following steps:
1) You take out two candies.
2) If the two candies are of the same flavour, you add a blueberry one otherwise, you add the strawberry one.

You repeat these two steps till there is just one candy remaining in the jar. Which flavoured candy will be left?

I am something people love or hate. I change peoples appearances and thoughts. If a person takes care of them self I will go up even higher. To some people I will fool them. To others I am a mystery. Some people might want to try and hide me but I will show. No matter how hard people try I will Never go down. What am I?

Can you place three balls such that the equation shown in the picture holds true?

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 ?

It belongs to you, but other people use it more than you do. What is it?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

John can place six large boxes or nine small boxes into a carton.

Can you find out in how many cartons can he place sixty-six boxes in total?