By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

Our product and our sum always give the same answer. Who are we?

What part of the chicken has the most feathers?

A man was gazing through the window of the 23rd floor of the building. He suddenly opened the window and jumped on the other side of the window. On landing on the floor, there was not a sheer mark of injury on him.

How can that be possible if he did not use any kind of parachute and did not land on a soft surface?

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

What four weights can be used to balance from 1 to 30 pounds?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

Today is a very icy and cold morning in Newcastle. Mr Shearer, an office bus driver arrived to pick up the employees from the last stop. Shearer suddenly remembers that he needs to pick a newly joined 4miles to the north. Mr Shearer lost his direction compass, a few minutes later Shearer is able to figure that he is moving in the correct direction i.e. north. How did Shearer know that he is moving in the correct direction?

With the help clues provided in the image, can you find the 5 digit key?

No one wants to have it, but if one got it, he does not want to lose it. What is It?