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

How many triangles can you count in the figure given?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

My location can be determined by the below rebus.
So where am i ?

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

Which letter of the alphabet has the most water?

If,

Akriti = 631
Levis = 521
Sroti = 521
Aneel = 533
Then,
Sunil =?

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?

Jessica is telling her friends this story and asks them to guess if it’s the truth or a lie: “There was a man sitting in a house at night that had no lights on at all. There was no lamp, no candle, and no other source of light. Yet, he sat in the house and read his book happily.” Her friends say she’s lying, but Jessica corrects them and says she’s telling the truth. Jessica’s story is true—but how?

The doctor advised his patient to take a tablet after every fifteen minutes. He gave him five tablets in total.

How much time will he take to have all the five tablets?