Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

Three fair coins are tossed in the air and they land with heads up. Can you calculate the chances that when they are tossed again, two coins will again land with heads up?

Find the 8 in the below-given Image.

Six glasses are in a row. The first three are filled with milk and the last three are empty. By moving only one glass, can you arrange them so that the full and the empty glasses alternate?

He does not have any heart but still, He manages to live.
If you kill him, you will eventually die but yet you kill him.
He cannot run, who is He?

Can you fill the blank with the correct number?

6 30 870 756030 _____

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

A cricket has 6 legs, a squirrel has 4 legs and a spider has 8 legs.

In a local zoo, it was found that the total number of legs is 612. Also, there are equal number of each of the above animals/insects.

Can you find out how many animals are there in the zoo?

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------

How many triangles can you count in the figure given?