You board a train. The train will have to enter a tunnel soon. You are claustrophobic. Which place is the best for you to sit?

If in a code language, DISTANCE is written as IDTUBECN and DOCUMENT is written as ODDVNTNE, the how will THURSDAY be coded as in the same language?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

Open a Laptop which is password protected. Hint for the password is given as below:

1 mobile 3 books 2 Boards 1 night 4 balls 2 lighters 1 ghost 1 hat 3 watches

A man dies of old age on his 25 birthday. How is this possible?

What has one eye, but can’t see?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

A man was gazing through the window of the 23rd floor of the building. He suddenly opened the window and jumped on the other side of the window. On landing on the floor, there was not a sheer mark of injury on him.

How can that be possible if he did not use any kind of parachute and did not land on a soft surface?

On the dull night when the blonde was dozing, she heard an odd clamour and she saw that there was a bizarre man with a gun simply outside her home. So she raced to the telephone to call the police, however, she can't dial 911. Why?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?