Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

What Time Should the last watch show in the below figure?

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

How can you make number one disappear by adding something to it?

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

What do you see in the image below

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

You are presented with three boxes. One of them has a red ball inside and the other two have a black ball inside each of them. You are asked to pick up the one with red ball and you pick one. Now, one of the other boxes is opened and it is found to have a black ball.

You are presented with a chance to change your box with the one that is left closed. Will you change your box? Why or why not?

In an Art Gallary, When the clock hit 11 am, Artist hung the painting number 30. When it struck 4 pm, he hung painting number 240 and when it struck 7:30 pm, he hung painting number 315.

Can you determine, which painting number will he hang when the time is 9:20 pm?

Given that

(78)^9 = 6
And (69)^4 = 11

Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)