Using Only Five 5's and any mathematical operator make sum as 37

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

A pet show was happening in my locality. I went down along with my kids. In that show, I noticed that all except two of the entries were cats. All except two were dogs and all except two were Monkeys.

Can you find out how many of each animals were present in that pet show?

What does it mean?

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

Find the next number in the sequence

1, 2, 6, 21, 88, __?

A man dies of old age on his 25 birthday. How is this possible?

John was gifted a new Hayabusa. He drove x miles at 55mph. Then he drove x+20 miles at 40mps. He drove his bike for 100 minutes. How much distance did he travel?

An American nightclub called 'The Coconut Grove' had a terrible fire in which over 400 people died. A simple design flaw in the building led to a high death toll. Subsequently, regulations were changed to ensure that all public buildings throughout the country eliminated this one detail, which proved deadly. What was it?