If you say my name, I will no longer exist. What am I?

why number 8549176320 is one of a kind?

How is a fly different from a mosquito?

Jim and Sarah are in a long-distance relationship. Jim buys an engagement ring for Sarah and wants to mail it to her. Unfortunately, the only way to ensure the ring will be received is to place a lock on the package. Jim has locks and Sarah has locks, but neither has keys for each other’s locks. How can they make sure the ring isn’t stolen?

In a contest, four fruits (an apple, a banana, an orange, and a pear) have been placed in four closed boxes (one fruit per box). People may guess which fruit is in which box. 123 people participate in the contest. When the boxes are opened, it turns out that 43 people have guessed none of the fruits correctly, 39 people have guessed one fruit correctly, and 31 people have guessed two fruits correctly.
How many people have guessed three fruits correctly, and how many people have guessed four fruits correctly

How is the moon similar to a dollar?

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

Why is the Hole below a Lock?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.