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

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

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

There are three identical triplets sisters. Demi is the oldest of them all and she always speaks the truth. Diana is the next one who is a liar always. Drew, the youngest of them all speaks both truth and lies randomly.

On a rainy day, a family friend Victor visited them. Since there were starkly identical, he was not able to recognize them. Thus to clarify, he asked one question to each one of them.

He started with the one standing on the left and asked, 'Which sister is in the middle of you three?' She answered, 'That's Demi.'

Then, he asked the one standing in the middle, 'What is your name?' She answered, 'I am Drew.'

Finally, he asked the one standing on the right, 'Who is standing in the middle?' She answered, 'She is Diana.'

Victor was left baffled. He asked the questions three times and received different answers every time.

Can you tell who was who?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

In a fruit store, there was a unique weighing machine that was made to weigh only cherries and strawberries as they were priced the same.

Other fruits like watermelons or mango had different machines as they were expensive.

A man successfully buys watermelons at the price of cherries. How?

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

What jumps when it walks and sits when it stands?

Find the last number in the series below:

voN luJ yaM raM ---