See the given image carefully. What you have to do is move the blue checkers in the position of the black checkers and vice versa. You are only allowed to move the checker to an adjacent empty space. Do it in the least possible moves.

What does this rebus mean?

O
N
C
E
TIME

You can hear me, but you can't touch or see me.

What am I?

O_er_t_o_

Complete the missing letters of the given word.

A red house is made out of red bricks. A yellow house is made out of yellow bricks. And, a blue house is made out of blue bricks. So, what is a greenhouse made of?

Can you find the key in the picture below?

In a picnic session, a footballer was practicing. During his play, he busted lips and ears and broke ribs and thighs. However, he was still able to play a professional match on the very next day.



How can this be possible?

Find the next number in the series.
1 10 24 43 67 ?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

Below is the sum of symbols in each row and column in the figure. Analyzing the figure, can you find out the value of the symbols?