What is next number in the pattern below:

131 517 192 123 ?

Replace the question mark with the number below given a simple math problem.

I look at you, you look at me I raise my right, you raise your left. What am I?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

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

What 5-letter word typed in all capital letters can be read the same upside down?

The captain of a ship was telling this interesting story: "We travelled the sea far and wide. At one time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly." How can that be possible?

The cream is heavier than Milk. True or False?

Some friends went on a vacation to a resort. It was raining heavily and it kept raining for thirteen days.

When it rained in the morning, the afternoon was beautiful and when it rained in the afternoon, the day was blessed with a clear morning.

Overall, the friends experienced eleven nice mornings and twelve nice afternoons. Can you find out the number of days they spent on vacation?

In the addition below, all digits have been replaced by letters.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?