What has hands, but can’t clap?

What does below Rebus say?

XLR8

What is next number in the pattern below:

131 517 192 123 ?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

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?

A kind heart person buy packed food at 3$/packet from United states and sells them at 1$/packet at Africa. After some time he becomes a millionaire.

How come the guy become millionaire ?

There is a place where if I stand up straight, I will still be considered sideways.

You can hear me, but you can't touch or see me.

What am I?

Two natural numbers have a sum of less than 100 and are greater than one.

John knows the product of the numbers and Jacob knows the sum of numbers.

The following conversation takes place between them:
John: 'I am not aware of those numbers.'
Jacob: 'I knew you wouldn't be. I am not aware myself.'
John: 'Now I know them!'
Jacob: 'Now I know them, too!'

What are the two numbers?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?