If 1+9+8=1, what is 2+8+9?

How many sides does a circle have?

Christina is older than Kareena and Karishma. Katrina is older than Karishma and younger than Kareena. If Kareena has a brother named John, who is older than Christina, who's the youngest?

What is black when you buy it, red when you use it, and gray when you throw it away?

When you stop to look, you can always see me. But if you try to touch me, you can never feel me. Although you walk towards me, I remain the same distance from you. What am I?

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

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

Count the number of triangles in the picture below:

I add 5 to 9 and get 2. The answer is correct, so what am I?

Five lovely ladies(Sophia, Isabella, Madison, Emma and Olivia) planned a picnic.

They each buy one thing each for the picnic.

Sophia, Emma and Olivia got a drink : orange-Juice, apple-juice, and mango-juice.
Olivia got the drink with the same letter as the one in her first name.
Emma loves mango-juice.
The other two bring some food : chocolates and pizza.
Also Madison is allergic to cheese.

So which ladies bought what ?