People put me on the table and cut me but do not eat me. What am I?

A famous swimmer can swim downstream in a lake in exactly 40 minutes with the lake current.
He can swim upstream in that lake in exactly 60 minutes against the lake current.
The length of the lake is 2 km.

How long he can cover the distance of one side at a still lake with no current?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

How can you make a TV, a bed, a dog, and a car liquid?

Can you make the number 24 by utilizing the numbers 1, 3, 4 and 6? You must use one number only one time and you can use mathematical operation symbols anytime anywhere.

Solve the riddle below:

If a Chicken says, 'All chickens are liars" is the chicken telling the truth?

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

The husband and wife were jogging in the morning. To match every two steps of the husband, the wife required three steps. If Both of them start with the here right foot. After how many steps do their left foot be together?

You have two jars of chocolates labelled as P and Q. If you move one chocolate from P to Q, the number of chocolates on B will become twice the number of chocolates in A. If you move one chocolate from Q to P, the number of chocolates in both the jars will become equal.

Can you find out how many chocolates are there in P and Q respectively?

What is next number in the pattern below:

131 517 192 123 ?