What question can you never answer yes to?

What goes up but never comes down?

Jenifer and Jesica are having a conversation.

Jenifer: I am definitely not over 30.
Jesica: I am 28 and you are surely 5 years older to me at least.
Jenifer: No, you are at least 29.

You are told that both of them are lying throughout in the conversation. Can you find their respective ages?

In the figure, you can see nine stars. What you have to do is connect all of them by using just four line and without lifting your hand i.e. in a continuous flow.

Nodes are shown below and you need to connect them based on the following rule: Every node can be connected to the number of nodes inside them, i.e. the first node there is a value of 1 which indicates that the first node can connect to exactly one node only.Can you do it?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

Solve this riddle by finding the odd one out from the rest.

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

There are 2 cops parked along a one-way street looking for traffic violations. They spot a taxi driver going in the wrong direction, yet they do nothing.

Why?