If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

What is the next number in this matchsticks series riddle?

Find the Goldfish below the given Image.

I look at you, you look at me I raise my right, you raise your left. What am I?

Identify the 10 differences between the two given pictures.

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat.

Can this even be possible?

What is the centre of gravity?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

I am the first thing you need while camping.
I am always with the person named Marcos Valencia and Carrick.
But Pogba Zlatan and Rooney think I am wasteful and do not need me.
I am the second to the last thing to add when you are making a patch.

What am I?