Manish has to secure 40% marks to pass his B.tech final exams.
He got just 40 marks and failed by 40-marks.

What is the maximum marks?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

I inserted a coin in a bottle and closed its mouth with the help of a cork. Now, I was able to take the coin out from the bottle without taking out the cork or breaking the bottle. Can you tell me how I did it?

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

The day after tomorrow will be three days before Tuesday. Can you find out what is today?

It belongs to you, but other people use it more than you do. What is it?

You enter your friend's room. He is not in his room. Although you see that on the bed there are two dogs, five cats, two giraffes and three pigs. Also, a couple of chickens and ducks are flying in the room.

Calculate the number of legs standing on the floor.

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

I am thinking of a five-digit number such that:
The first and last digits are the same, their submission is an even number and multiplication is an odd number and is equal to the fourth number. Subtract five from it and we obtain the second number. Then divide into exact halves and we get the 3rd number.

What number I am thinking of?