Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

There is a hypothetical state between the USA and Mexico border 'Tango'.
Here 70 percent of the population have defective eyesight, 75 percent are hard of hearing, 80 percent have Nose trouble and 85 percent suffer from allergies, what percentage (at a minimum) suffer from all four ailments?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

Identify the 10 differences between the two given pictures.

The Little ant seems to be always confused. Do you know why?

Find out which of the given views in the picture is accurately the top view of the given pyramid.

A Detective reviewed the information they had on the case so far.

A lady named 'Caterina' was found shot and they already had a list of suspects - Ankit, Tarun, Harish, Manoj and Manish.
The killer is a fan of challenges him by leaving notes ad various places.
* The first was found in a toilet room.
* The second was found in an art room.
* The third was in a restroom.
* the fourth in an underwater room.
* The fifth at the no-smoking room.

All of the notes read the same thing, 'The clues are where you find the notes.' Yet, nothing was found at any place the notes were.
Detective the genius, immediately solved the case.
Who was the killer?

In the image below, can you find the value of an angle(y)

What jumps when it walks and sits when it stands?