Can you find the key in the picture below?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

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 ?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

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?

Can you find the 09 errors in the picture below?

Why is the Hole below a Lock?

Wednesday, Steve and Pam go to a restaurant to eat lunch. After eating lunch, they pay the bill. But Steve and Pam do not pay the bill. So…who does?

A large water tank has two inlet pipes (a large one and a small one) and one outlet pipe. It takes 3 hours to fill the tank with the large inlet pipe. On the other hand, it takes 6 hours to fill the tank with the small inlet pipe. The outlet pipe allows the full tank to be emptied in 9 hours.

What fraction of the tank (initially empty) will be filled in 0.64 hours if all three pipes are in operation? Give your answer to two decimal places (e.g., 0.25, 0.5, or 0.75).

You see me once in June, twice in November, and not at all in May. What am I?