There was an aeroplane crash, every single person died, but two people survived. How is this possible?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

A man wants to cross the pit of fire which is 25 feet in length and he has 2 planks(fire resistant) 19 feet in length. How can he cross the pit of fire alive?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

Rose, Lily and Jasmine decided to buy flowers for their moms on Mother's Day. One of them bought lilies, the other roses, and the third one jasmines.
'It's funny!' said the girl with roses, 'we bought roses, jasmines and lilies, but none of us bought the flowers matching her name'.
'You're right!', said Lily.
What kind of flowers did each of the girls buy?

Name a key which is hardest to turn.

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

I’m orange, I wear a green hat and I sound like a parrot. What am I?

An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

What is the next shape from answers A, B, C, and D figure?