Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

On a special event at the prison, 5 prisoners John, Jacob, Krist, Tang, and Dang given a chance to go to a sauna and can bring one thing with them.

Following are the things that the prisoners bring with them.
John: A soda
Jacob: Thermos
Krist: Book named "How to kill"
Tang: A Walkman
Dang: Harmonica

Since it is a Sauna, no one can see each other. After a while When the steam is switched, Tang was found dead and there was blood all around.
J Bond was called and he instantly come to know who can be the murderer. How?

In a certain bank, a man deposits a certain amount. According to the bank policies, the amount will be doubled up in a year but as the service charge, they will also deduct Rs. 65 by the end of every year.

If after the 6th year, the amount becomes 0, what do you think is the original amount he deposited in the bank?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

In which direction should the missing arrow point?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

A thief enters a store and threatens the clerk, forcing her to open the safe. The clerk says, “The code for the safe is different every day, and if you hurt me you’ll never get the code.” But the thief manages to guess the code on his own. How did he do it?

In the image given, you can find several triangles. Can you count them all?