Can you find the missing piece of the Porsche?

Suppose you are sitting in an interview and the interviewee asks you an aptitude question.

You have three buckets with a capacity of 4 litres, 8 litres and 10 litres and you have a large tank of water. Now you have to measure 3 litres of water precisely using those buckets. How will you do it?

You need to remove two matchsticks to make the below equation true. Can you do it ?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

Take number 1000 and then add 20 to it.
Now add 1000 one more time.
Now add 30.
Now add 1000 one more time.
Now add 40.
Now add 1000 one more time.
Now add 10.

What is the total?

A man is found dead in his bathroom naked with blood scattered all around him. The bathroom was locked from the inside and there is no trace of any struggle. There is nothing in the bathroom except his pant with the belt still around and his shirt. Also, the medic team can't find any incision in his body that may have been the reason behind so much blood loss.

The Police department is clueless regarding this murder mystery.
Can you?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

Can you count the number of triangles in the picture below?

What can you hold in your right hand, but never in your left hand?