If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

In the Chess Board picture below white army is arranged. You need to add a black army on the board such that no piece is under any threat.
Note: Army comprised of 1 king, 1 queen, 2 rooks, 2 bishops, 2 knights, and 8 pawns.

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

The centre of the third figure is empty. What digit should fit inside?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

A train leaves from point A for point B at 80 mph. After half an hour, another train leaves from point B for point A at 60 mph.

Which of the trains will be farther from point A when they meet ?

Joseph buys three kinds of chocolates for 100 rupees. The first one is priced at 5 rupees, second one at 3 rupees and third one at 0.5 rupees.

If he bought 100 chocolates in total, how many pieces do you think he bought each chocolate?

Which number comes next in the number series?

2, 9, 30, 93, ?

Chef Andrea has to light the kitchen stoves to open her restaurant for the day. There are three stoves in the kitchen: A glass stove, a brick stove, and a wood stove. She only has one match. Which does she light up first?

They are three errirs in this question. Can you find them?