One of the coins is really not a nickel because nickel is the other coin.

1 brick = 1 kg + 1/2 brick
And so 1 brick is 2 kg heavy.

There are 2 possible solutions:
1. if angels B and C had aureole of the same color, then angel A must have immediately
said his own color (other then theirs),
2. if angels B and C had different colors, then angel A must have been silent and that
would have been a signal for angel B, who could know (looking at angel C) what his
own color is (the other one then C had).

The wise man told them to switch camels.

The saucer was half full at 11.59 - the next minute there will be twice as many of them
there (so full at 12.00).

Throw the ball straight up in the air.

Keep the first bulb switched on for a few minutes. It gets warm, right? So all you have to do then is... switch it off, switch another one on, walk into the room with bulbs, touch them and tell which one was switched on as the first one (the warm one) and the others can be easily identified...

Throw the ball straight up in the air.

6,561
There are two sequences arranged alternately. In each sequence the number is the square of the previous number in that sequence. 6,561 is the square of 81.

Pink concert tickets

Garden

M&S