Can you find the missing piece of the Porsche?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

Can you name four days which start with the letter 'T'?

Replace the question mark with the correct number, given the pair of numbers exhibits a similar relationship?

? : 3839 :: 11 : 1209

I am green and found in the forest and have needles instead of leaves. What am I?
Hint 1: It can be used for Christmas decorations.
Hint 2: I have a strong, scent that is used in air fresheners.

Imagine you are in a room with no windows or doors. How will you get out?

What's a single-digit number with no value?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

I travel all around the world but always stay in the corner. What am I?

Find the missing number in the series below

13 -21 34 -55 ? -144