Can you circle exactly four of these numbers such that the total is twelve?

1 6 1
6 1 6
1 6 1
6 1 6

The first box has two white balls. The second box has two black balls. The third box has a white and a black ball.

Boxes are labeled but all labels are wrong!

You are allowed to open one box, pick one ball at random, see its colour and put it back into the box, without seeing the colour of the other ball.

How many such operations are necessary to correctly label the boxes?

You find yourself in a strange place guarded by two guards.One of the guard always say truth while other always lies.You don't know the identity of the two.You can ask only one question to go out from there. What should you ask?

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

Can you Find and name the hidden bird in the picture below ?

People put me on the table and cut me but do not eat me. What am I?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

Can you find the odd number in the following five choices?

1) 482636
2) 259807
3) 865195
4) 104739
5) 391744

Can you name four days which start with the letter 'T'?