I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?

Can you decipher the below rebus?

PBLUESAISNUERSES

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

He does not have any heart but still, He manages to live.
If you kill him, you will eventually die but yet you kill him.
He cannot run, who is He?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

Which part of London exists in France as well ?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

Rahul decided to meet Simran so he boards a local train from Bombay station. Just after the station, there is a 1km long tunnel. The train starts and is now accelerating. Rahul is a claustrophobic guy, so what is the best position for him to sit?

In the attached figure, you can see a chessboard and two rooks placed on the chess board. What you have to find is the number of squares that do not contain the rooks. How many are there?