How can you write nineteen in a manner that if we take out one, it becomes twenty?

Using Only Five 5's and any mathematical operator make sum as 37

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

He does not have any heart but still, He manages to live.
If you kill him, you will eventually die but yet you kill him.
He cannot run, who is He?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

In the addition below, all digits have been replaced by letters. Equal letters represent equal digits and different letters represent different digits.
ABCABA
BBDCAA
ABEABB
ABDBAA
------- +
AAFGBDH
What does the complete addition look like in digits?

Different lights make me strange by changing me into different sizes. What am I?

Which Burger Is Different in below image?

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?