Cristina leaves home and then she makes exactly 3 left turns and returns home where she found 2 girls wearing the mask.

Who are these two masked girls?

Before the start of the car race, John and Jacob have the same amount of fuel in their car. With this fuel, John can drive for 4 hours while Jacob can drive five hours.
After a time they realize that the amount of fuel left in John's car is 1/4th of the fuel in Jacob's.

For how long they are racing?

A man has to get a fox, a chicken, and a sack of corn across a river.

He has a rowboat, and it can only carry him and one other thing.
If the fox and the chicken are left together, the fox will eat the chicken.
If the chicken and the corn are left together, the chicken will eat the corn.

How does the man do it?

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

Move three sticks of the spiral below to form a square.

Spot what is wrong here in below Picture?

What does it mean?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

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

What can you catch but never throw?