Can you find out which number multiplied by itself will give the output as 12345678987654321?

What is red and smells like blue paint?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

How many bananas can you eat if your stomach is empty?

Why is it against the law for a man living in Delhi to be buried in Mumbai?

A man is found dead in his bathroom naked with blood scattered all around him. The bathroom was locked from the inside and there is no trace of any struggle. There is nothing in the bathroom except his pant with the belt still around and his shirt. Also, the medic team can't find any incision in his body that may have been the reason behind so much blood loss.

The Police department is clueless regarding this murder mystery.
Can you?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

A man wants to cross the pit of fire which is 25 feet in length and he has 2 planks(fire resistant) 19 feet in length. How can he cross the pit of fire alive?

In the four images below, can you find the odd one out?