How many sides does a circle have?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

There is a box. The area of its top is 240 square units, the area of the front is 300 square units and the area of the end is 180 square units.

Can you calculate the dimensions of this box with the given data?

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?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

French Police inspects a room where there are no windows, no doors, no tables and is almost empty expect there is just a puddle of water. They found a dead man who obviously hung herself from the ceiling, but they are not able to figure out how this had happened.

John and Jacob entered the crime scene and easily able to solve the case.

How did the man die?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

Solve the equation in the image by looking at the pattern closely.