Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

An artist while painting a scenic beauty, decides to paint three layers of blue colour on the sky.

Which layer will go on the first?

Can you replace the question mark with the correct number in the below table sequence?

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

Why is a river so rich ?

All of Jacob's shoes are red except two.
All of Jacob's shoes are green except two.
All of Jacob's shoes are yellow except two.

How many shoes does Jacob have?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

John and Jenni are a married couple. They have two kids, one of them is a girl. Assume safely that the probability of each gender is 1/2.
What is the probability that the other kid is also a girl?

Hint: It is not 1/2 as you would first think.

In one of the popular batman series movie "Batman Forever", there was a riddle that goes like "Tear me off and then scratch my head and I was red then and now I am back. Who am I?