People make me, save me, change me, raise me. What am I?

Different lights make me strange by changing me into different sizes. What am I?

Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?

Jack have ten pairs of black socks, eight pairs of white socks and seven pairs of green socks. Everything is mixed in a draw. As there is no light he were not able to identify the colour of the socks. How many of the socks did he want to take to match one pair

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

13 decks of cards have been mixed. What is the minimum number of cards that must be taken out from the above-mixed cards to guarantee at least one 'four of a kind?

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

What am I?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

How is the moon similar to a dollar?