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

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

What is the centre of gravity?

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 will you call your mother's brother's brother-in-law?

A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

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

What am I?

In a box, there is a jumble of 7 red balls, 6 blue balls, 5 green balls, and 4 yellow balls. What is the minimum number of balls, will you have to pick up so that you have at least 4 balls of the same colour?

If EELS + MARK + BEST + WARY = EASY

What does HELP + BARK + WARD + LEAD equal?