Decode this picture on T-Shirt and tell what it says ?

Complete the table series riddle by finding the number that can replace "??".

I am the fastest animal but cannot climb the tree. What am I?

Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?

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?

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

Jim and Sarah are in a long-distance relationship. Jim buys an engagement ring for Sarah and wants to mail it to her. Unfortunately, the only way to ensure the ring will be received is to place a lock on the package. Jim has locks and Sarah has locks, but neither has keys for each other’s locks. How can they make sure the ring isn’t stolen?