How can you take 2 from 5 and leave 4?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

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

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

You need to arrange three 7 and mathematical symbols to form number 1?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

You are given a set of weighing scales and 12 marbles. The scales are of the old balance variety. That is, a small dish hangs from each end of a rod that is balanced in the middle. The device enables you to conclude either that the contents of the dishes weigh the same or that the dish that falls lower has heavier contents than the other. The 12 marbles appear to be identical. 11 of them are identical, and one is of a different weight. Your task is to identify the unusual marble and discard it. You are allowed to use the scales three times if you wish, but no more. Note that the unusual marble may be heavier or lighter than the others. You are asked to both identify it and determine whether it is heavy or light

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?

There are six people in a family namely M, N, O, P, Q and R.

R and O are brother and sister.

N is the brother of Q's husband.
P is the father of M and grandfather of R.

How many male members are in the family?