Three ants are sitting at the three corners of an equilateral triangle. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. What is the probability that none of the ants collide?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

'S' refers to the number of seconds in a day and 'H' refers to the number of hours in ten years. Which quantity out of these two is greater?

In the image given, you can find several triangles. Can you count them all?

If we tell you that there is a relation between the numbers and letters in the given figure, can you analyze it and find the missing letter in the last box?

what does this below rebus represent identXQQQQQME

You are playing as white and given four rooks to checkmate the black king in four moves with the following rules 1. You can place one rook every move and ensure the black king should be in check position.2. After four moves the black king should be in the checkmate position.

Which tank will fill first?

What is black when you buy it, red when you use it, and gray when you throw it away?

What is next number in the pattern below:

131 517 192 123 ?