What is at the end of a rainbow?

I left my campsite and hiked south for 3 miles. Then I turned east and hiked for 3 miles. I then turned north and hiked for 3 miles, at which time I came upon a bear inside my tent eating my food! What colour was the bear?

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

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

I had an infinite supply of water and 5 litres and 3 litres jars.

How would you measure exactly 4 litres in the least number of steps?

John was going on a jungle trip. He asked his wife to pack something to eat, something to drink and something to burn if he feels cold in the jungle. When John opens the backpack he found just one thing in the bag. What was it?

Krish is 45 years old and his mother Crishtina is 73 years old.

Can you find out how many years ago, his mother was three times his age?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?