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

It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?

I cannot talk, but I always reply when spoken to. What am I?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

A river should be crossed by a father, a mother and their two sons and two daughters.
There are some rules that should be followed while crossing the river. There can be only two people in the raft while crossing. The daughters cannot be with their father unless there is the presence of the mother. The sons cannot be with their mothers unless the father is present. Unless the guard is on the board, the criminals cannot be with any of the family members. Only the adults like the father, the guard, and the mother knows to use the raft.

How will they cross the river?

I have no life, but I can die. What am I?

Find the hidden panda in the image below.

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

John bought a new car. He has a habit of eating ice cream from a particular ice cream shop while returning home from office. Whenever, he eats strawberry ice cream, he faces no problem. But whenever, he eats chocolate ice cream, the car starts giving problem. At first, he thinks, it is just a co-incidence but when this awkward incident happens for 3-4 times, he reports this problem to the company.

The mechanic of the company checks but finds no problem at all. The next day, when he stops by to eat chocolate ice cream, the car again starts giving problem.

Can you find the possible reason?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.