Can you count the number of quadrilaterals in the picture below?

If you go to the movies and you're paying, is it cheaper to take one friend to the movies twice, or two friends to the movies at the same time?

A family is trapped in a jungle. There is a bridge which can lead them to safety. But at one time, the bridge can only allow two people to pass through. Also, all of them are afraid of the dark and thus, they can't go alone.

Father takes 1 minute to cross, the mother takes 2 minutes, the son takes 4 and the daughter takes 5 minutes. While crossing the time taken will be according to the slower one. How can they all reach the other side in the minimum possible time?

My first is in chocolate but not in ham. My second is in cake and also in jam. My third at tea time is easily found. Altogether, this is a friend who is often around. What is it?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

What is the end of everything?

There are two words one resembles the "state of rest" and the other is related to "writing/reading material".

Can you name these two words which also sound similar?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

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

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