Considering the below equation:

V + II - VI = 10
IV - X + VIII = 20
IV - VII + VI = 30

Then, I + II + III = ?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

Prove that the below maths equation is true.

8 + 8 = 91

Two boys wish to cross a river. The only way to get to the other side is by boat, but that boat can only take one boy at a time. The boat cannot return on its own, there are no ropes or similar tricks, yet both boys manage to cross using the boat.

How?

why number 8549176320 is one of a kind?

All of you like to eat me. I am a five-lettered word. Remove the first two and I turn into an infamous animal. Remove just the first and I become a heinous crime. Remove the first and the last and you can groove on me.

Can you guess who am I?

Using Only Five 5's and any mathematical operator make sum as 37

A prisoner is told: "If you tell a lie, we will hang you and if you tell the truth, we will shoot you." What did the prisoner say to save himself?

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?

I have no life, but I can die. What am I?