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?

Why is the Hole below a Lock?

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

How Come ??

I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth, I am dissolved into air. What am I?

What do you think with the below Picture ?

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

In the following picture, E is going to slide the object down and as per the terrain and the physics, the round object is going to travel all the way till the end. Now, can you analyze who all people will die when it happens?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

You need to complete the maze by entering from the entrance marked below in the figure near the yellow circle, bottom left and leaving from the exit point near the green circle, bottom middle.

Rule of Game: You can move only by exchanging green and yellow circles.

I am green and found in the forest and have needles instead of leaves. What am I?
Hint 1: It can be used for Christmas decorations.
Hint 2: I have a strong, scent that is used in air fresheners.